Adding Execution Plan Editor to ADS (#18696)

* Pushing Execution Plan Editor

* Renaming class
Handling error

* Awaiting for handlers to be registered

* Addressing some PR comments

* Fixing return type for provider

* Fixing editor id and removing unnecessary overrides

* Adding a namespace

* adding execution plan namespace

* Adding protocol comment

* Fixing if logic

* Fixing error message

* Cleaning up code

* cleanup code

* Adding help comments

* Fixing method call

* Using path.ts to get the base file name

* converting to lambda functions

* Adding comment for run action

* Fixing pr comments

* Fixing editor label

* Fixing doc comments

* Adding some more comments

* Fixign branding in comments

src/sql/workbench/services/query/common/queryModel.ts

@@ -16,7 +16,7 @@ import {
 	EditRevertCellResult,
 	ExecutionPlanOptions,
 	queryeditor,
-	ExecutionPlanGraph
+	executionPlan
 } from 'azdata';
 import { QueryInfo } from 'sql/workbench/services/query/common/queryModelService';
 import { IRange } from 'vs/editor/common/core/range';
@@ -34,7 +34,7 @@ export interface IQueryPlanInfo {
 export interface IExecutionPlanInfo {
 	providerId: string;
 	fileUri: string;
-	planGraphs: ExecutionPlanGraph[];
+	planGraphs: executionPlan.ExecutionPlanGraph[];
 }
 
 export interface IQueryInfo {