Fix documentation generation warnings;

Make test types not public

Documentation~/com.unity.labs.editorxr.md

@@ -23,7 +23,7 @@ This version of EditorXR is compatible with the following versions of the Unity
 
 ## Known limitations
 
-*_EditorXR version 0.4.10-preview includes the following known limitations:_*
+*_EditorXR version 0.4.13-preview includes the following known limitations:_*
 * *_Undo/redo do not record all change history yet in the Radial Menu_*
 * *_Toggles from the main menu are not yet supported (snap, locomotion type, etc)._*
 * *_Other EditorXR menus and workspaces still draw above the Spatial Menu._*
@@ -46,8 +46,6 @@ If you are new to EditorXR, or have a question after reading the documentation,
 * Join our [support forum](https://forum.unity.com/forums/editorxr.126/).
 * Follow us on [Twitter](http://www.twitter.com/unity3dlabs).
 
-<a name="UsingEditorXR"></a>
-
 # Using EditorXR
 
 To use EditorXR, go to ****Windows**** > ****EditorXR**** (or press Ctrl-E on your keyboard), then put on your headset. You might need to click the button ****Toggle Device View**** to have it show correctly in the headset.
@@ -279,8 +277,6 @@ To use EditorXR, go to ****Windows**** > ****EditorXR**** (or press Ctrl-E on yo
 
      [![Locked Objects](images/locked.png)](https://drive.google.com/open?id=1JgfadHWtL9mwIJ0I_vc2wb2vUSV8tT9e "Locked Objects")
 
-<a name="Workflows"></a>
-
 # EditorXR workflows
 
 To create assets:
@@ -317,21 +313,17 @@ To place assets:
 
   [![Place](images/placement.png)](https://drive.google.com/open?id=1Oxh5uYDp5MoxwKeaTjgT_d3GBpKUi5u6 "Place")
 
-<a name="Advanced"></a>
-
 # Advanced topics
 
 This section provides more information on the following topics:
 
-* [EditorXR Runtime](#first): explains the use of EditorXR in Play Mode and included in Player builds.
+* [EditorXR Runtime](#editorxr-runtime): explains the use of EditorXR in Play Mode and included in Player builds.
 
-* [Minimal Context](#second): explains the origin of ...
+* [Minimal Context](#minimal-context): explains the origin of ...
 
-* [Image Effect and Camera Settings Copy Support](#third): explains the origin of ...
+* [Image Effect and Camera Settings Copy Support](#image-effect-and-camera-settings-copy-support): explains the origin of ...
 
-* [Extending EditorXR](#fourth): explains the origin of ...
-
-<a name="EditorXRRuntime"></a>
+* [Extending EditorXR](#extending-editorxr): explains the origin of ...
 
 ## EditorXR Runtime
 
@@ -347,8 +339,6 @@ Before entering Play Mode or making a build, there is one final step: you must c
 
  This will add support for the Script Importer functionality which many EditorXR systems rely on. This collects all of the MonoBehaviours that are instantiated during an EditorXR session and creates prefabs out of them, which will include asset references that were set in the Script Importer inspector. If you have created any new EditorXR systems you may want to ensure that you update this asset as you make changes, or tag your classes with the interfaces used within the DefaultScriptReferences class.
 
-<a name="MinimalContext"></a>
-
 ## Minimal Context
 
 * Ideal for lightweight client builds not requiring much of the EditorXR UI
@@ -359,8 +349,6 @@ Before entering Play Mode or making a build, there is one final step: you must c
 * Can be located in the project at :
   - Assets/EditorXR/Scripts/Core/Contexts/Minimal
 
-<a name="ImageEffect&CameraSettingsCopySupport"></a>
-
 ## Image Effect & Camera Settings Copy Support
 
 EditorXR has limited support for automatic copying of (post)image effects to the EditorXR camera(s), from the MainCamera in your scene.  This includes the in-HMD camera, and the “presentation camera”.  Both cameras are created by EditorXR on startup of an EditorXR session.

Tests/Editor/EditorXRTestInitializer.cs

@@ -10,7 +10,7 @@
 namespace Unity.EditorXR.Tests.Core
 {
     [SetUpFixture]
-    public class EditorXRTestInitializer
+    class EditorXRTestInitializer
     {
         EditingContextManagerSettings projectSettingsBackup;
         EditingContextManagerSettings userSettingsBackup;

Tests/Editor/Unit/Core/EditingContextManagerTests.cs

@@ -16,7 +16,7 @@
 namespace Unity.EditorXR.Tests.Core
 {
     [TestFixture]
-    public class EditingContextManagerTests
+    class EditingContextManagerTests
     {
         GameObject go;
         EditorXRContext context, context2;

Tests/Editor/Unit/Extension Methods/MonoBehaviourExtensionsTests.cs

@@ -6,7 +6,7 @@
 
 namespace Unity.EditorXR.Tests.Extensions
 {
-    public class MonoBehaviourExtensionsTests
+    class MonoBehaviourExtensionsTests
     {
         MonoBehaviour mb;
         int coIndex = 0;

Tests/Editor/Unit/Extension Methods/TransformExtensionsTests.cs

@@ -5,7 +5,7 @@
 namespace Unity.EditorXR.Tests.Extensions
 {
     [TestFixture]
-    public class TransformExtensionsTests
+    class TransformExtensionsTests
     {
         GameObject go;
         float delta = 0.00000001f;

Tests/Editor/Unit/Utilities/EditorXRUtilsTests.cs

@@ -7,7 +7,7 @@
 namespace Unity.EditorXR.Tests.Utilities
 {
     [TestFixture]
-    public class EditorXRUtilsTests
+    class EditorXRUtilsTests
     {
         GameObject m_GO, m_Parent, m_Other;
         List<GameObject> m_ToCleanupAfterEach = new List<GameObject>();

Tests/Editor/Unit/Utilities/GradientPairTests.cs

@@ -5,7 +5,7 @@
 namespace Unity.EditorXR.Tests.Utilities
 {
     [TestFixture]
-    public class GradientPairTests
+    class GradientPairTests
     {
         Color m_ColorA;
         Color m_ColorB;

Tests/Editor/Unit/Utilities/MathUtilsExtTests.cs

@@ -5,7 +5,7 @@
 namespace Unity.EditorXR.Tests.Utilities
 {
     [TestFixture]
-    public class MathUtilsExtTests
+    class MathUtilsExtTests
     {
         [OneTimeSetUp]
         public void Setup() { }