style(api-docs): clean up api documentation.

Previously, it was not possible to check request/response bodies samples in API documentation. This commit solves this error by refactoring the API documentation by using yaml for all api schemas/samples and decomposition of the open-api.yaml file.

- decompose the mod-search.yaml file.
- move all the paths into separate yaml files with corresponded folders inside paths folder.
- move all the parameters into separate yaml files inside the parameters folder.
- create yaml versions for all the examples.
- create yaml versions for all the schemas.
- delete example files with sample extension.
- delete schemas files with json extension.

Closes MSEARCH-546.

src/main/java/org/folio/search/model/ResourceId.java

@@ -0,0 +1,20 @@
+package org.folio.search.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class ResourceId {
+
+  private String id;
+
+  public ResourceId id(String id) {
+    this.id = id;
+    return this;
+  }
+}

src/main/java/org/folio/search/model/ResourceIds.java

@@ -0,0 +1,27 @@
+package org.folio.search.model;
+
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class ResourceIds {
+
+  private Integer totalRecords;
+  private List<ResourceId> ids;
+
+  public ResourceIds totalRecords(Integer totalRecords) {
+    this.totalRecords = totalRecords;
+    return this;
+  }
+
+  public ResourceIds ids(List<ResourceId> ids) {
+    this.ids = ids;
+    return this;
+  }
+}