added default configs to support development with vscode (#507)

.vscode/extensions.json

@@ -0,0 +1,7 @@
+{
+    "recommendations": [
+        "yaozheng.vscode-pde",
+        "vscjava.vscode-java-pack",
+        "esbenp.prettier-vscode"
+    ]
+}

.vscode/launch.json

@@ -0,0 +1,21 @@
+{
+	"version": "0.2.0",
+	"configurations": [
+		{
+			"type": "java",
+			"name": "Attach to JDT-LS (Standard)",
+			"request": "attach",
+			"hostName": "localhost",
+			"port": 1044,
+			"projectName": "com.salesforce.bazel.eclipse.jdtls"
+		},
+		{
+			"type": "java",
+			"name": "Attach to JDT-LS (Syntax)",
+			"request": "attach",
+			"hostName": "localhost",
+			"port": 1045,
+			"projectName": "com.salesforce.bazel.eclipse.jdtls"
+		}
+	]
+}

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+	"[java]": {
+		"editor.defaultFormatter": "redhat.java"
+	},
+	"java.format.settings.url": "tools/bazel-eclipse-formatter.xml",
+	"editor.formatOnSave": true,
+	"java.configuration.updateBuildConfiguration": "automatic"
+}

.vscode/tasks.json

@@ -0,0 +1,27 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "Package",
+            "type": "shell",
+            "command": "mvn clean -B package",
+            "windows": {
+                "command": "mvn clean -B package"
+            },
+            "group": "build",
+            "problemMatcher": []
+        },
+        {
+            "label": "Verify",
+            "type": "shell",
+            "command": "mvn -B verify",
+            "windows": {
+                "command": "mvn -B verify"
+            },
+            "group": "test",
+            "problemMatcher": []
+        }
+    ]
+}

javaConfig.json

@@ -0,0 +1,12 @@
+{
+    "projects": [
+        "bundles/com.salesforce.bazel.eclipse.core",
+        "bundles/com.salesforce.bazel.eclipse.jdtls",
+        "bundles/com.salesforce.bazel.eclipse.ui",
+        "bundles/com.salesforce.bazel.importedsource",
+        "bundles/com.salesforce.bazel.logback",
+        "bundles/com.salesforce.bazel.sdk"
+    ],
+
+   "targetPlatform": "releng/target-platform/target-platform-dev.target"
+}