Added support to populate some ILambdaContext properties to dummy values when executing under test tool.

Author: ashishdhingra

Tools/LambdaTestTool/src/Amazon.Lambda.TestTool/Runtime/LambdaExecutor.cs

@@ -53,7 +53,10 @@ public async Task<ExecutionResponse> ExecuteAsync(ExecutionRequest request)
 
                 var context = new LocalLambdaContext()
                 {
-                    Logger = logger
+                    Logger = logger,
+                    AwsRequestId = Guid.NewGuid().ToString(),
+                    FunctionName = request.Function.FunctionInfo.Name,
+                    InvokedFunctionArn = string.Format("arn:aws:lambda:{0}::function:{1}", request.AWSRegion, request.Function.FunctionInfo.Name)
                 };
 
                 object instance = null;