Automatically add Protobuf output source directories to clsspath (#2629)

Signed-off-by: sheche <sheche@microsoft.com>

Author: jdneo

README.md

@@ -207,8 +207,9 @@ The following settings are supported:
 * `java.inlayHints.parameterNames.enabled`: Enable/disable inlay hints for parameter names. Supported values are: `none`(disable parameter name hints), `literals`(Enable parameter name hints only for literal arguments) and `all`(Enable parameter name hints for literal and non-literal arguments). Defaults to `literals`.
 
 New in 1.10.0
-* `java.import.maven.offline.enabled` : Enable/disable the Maven offline mode. Defaults to `false`.
+* `java.import.maven.offline.enabled`: Enable/disable the Maven offline mode. Defaults to `false`.
 * `java.codeAction.sortMembers.avoidVolatileChanges`: Reordering of fields, enum constants, and initializers can result in semantic and runtime changes due to different initialization and persistence order. This setting prevents this from occurring. Defaults to `true`.
+* `java.jdt.ls.protobufSupport.enabled`: Specify whether to automatically add Protobuf output source directories to the classpath. **Note:** Only works for Gradle `com.google.protobuf` plugin `0.8.4` or higher. Defaults to `true`.
 
 Semantic Highlighting
 ===============

package.json

@@ -918,6 +918,12 @@
           "description": "Whether to load lombok processors from project classpath",
           "scope": "window"
         },
+        "java.jdt.ls.protobufSupport.enabled": {
+          "type": "boolean",
+          "default": true,
+          "markdownDescription": "Specify whether to automatically add Protobuf output source directories to the classpath.\n\n**Note:** Only works for Gradle `com.google.protobuf` plugin `0.8.4` or higher.",
+          "scope": "window"
+        },
         "java.codeAction.sortMembers.avoidVolatileChanges": {
           "type": "boolean",
           "default": true,