Added showGlobalVariables as a workspace level parameter

package.json

@@ -1244,8 +1244,25 @@
               ],
               "description": "Delve Api Version to use. Default value is 2.",
               "default": 2
+            },
+            "showGlobalVariables": {
+              "type": "boolean",
+              "description": "Boolean value to indicate whether global package variables should be shown in the variables pane or not.",
+              "default": true
             }
           },
+          "default": {
+            "dlvLoadConfig": {
+              "followPointers": true,
+              "maxVariableRecurse": 1,
+              "maxStringLen": 64,
+              "maxArrayValues": 64,
+              "maxStructFields": -1
+            },
+            "apiVersion": 2,
+            "showGlobalVariables": true
+          },
+          "description": "Delve settings that applies to all debugging sessions. Debug configuration in the launch.json file will override these values.",
           "scope": "resource"
         },
         "go.alternateTools": {

src/debugAdapter/goDebug.ts

@@ -562,7 +562,7 @@ class GoDebugSession extends LoggingDebugSession {
 	private logLevel: Logger.LogLevel = Logger.LogLevel.Error;
 	private readonly initdone = 'initdone·';
 
-	private showGlobalVariables: boolean = true;
+	private showGlobalVariables: boolean = false;
 	public constructor(debuggerLinesStartAt1: boolean, isServer: boolean = false) {
 		super('', debuggerLinesStartAt1, isServer);
 		this._variableHandles = new Handles<DebugVariable>();

src/goDebugConfiguration.ts

@@ -79,6 +79,9 @@ export class GoDebugConfigurationProvider implements vscode.DebugConfigurationPr
 		if (!debugConfiguration.hasOwnProperty('dlvLoadConfig') && dlvConfig.hasOwnProperty('dlvLoadConfig')) {
 			debugConfiguration['dlvLoadConfig'] = dlvConfig['dlvLoadConfig'];
 		}
+		if (!debugConfiguration.hasOwnProperty('showGlobalVariables') && dlvConfig.hasOwnProperty('showGlobalVariables')) {
+			debugConfiguration['showGlobalVariables'] = dlvConfig['showGlobalVariables'];
+		}
 
 		debugConfiguration['dlvToolPath'] = getBinPath('dlv');
 		if (!path.isAbsolute(debugConfiguration['dlvToolPath'])) {