Add support build file patterns

Author: LeonovecSergey

package.json

@@ -21,6 +21,9 @@
 		"javaExtensions": [
 			"./bazel-ls-eclipse/com.salesforce.b2eclipse.jdt.ls/target/com.salesforce.b2eclipse.jdt.ls-0.1.0-SNAPSHOT.jar"
 		],
+		"javaBuildFilePatterns": [
+			"^WORKSPACE$", "^BUILD$", ".*\\.bazelproject$"
+		],
 		"commands": [
 			{
 				"command": "bazelimport.menus.viewtitle",