Edit Postgres Engine Settings Per Role (#15481)

* Enables being able to view and edit Coordinator node scheduling params (#15114)

* Trying to save per role settings

* Updated spec

* Cleaning up

* Removed unneccessary code and comments

* Added separate type for { w?: string, c?: string}, PR fixes

* Added methods to refresh mr,ml,cr,cl versus per role

* Fixed spec

* Put back optional properties, removed passing empty string to reset scheduling params

* Spacing

* vBump arc

* Included roles in fake show output for testing (#15196)

* Update arc specs (#15225)

* Update azdata Arc specs to match April azdata

* vcores -> cpu

* fix spacing

* Consolidate types and update storage volumes

* Fix compile

* Fix spec

* include coordinator

* Adding args

* Query call success

* Check for success in query

* List full coordinator params

* Change name

* Update unit test for engine settings

* Pr changes

* Fix query

Co-authored-by: Charles Gagnon <chgagnon@microsoft.com>

extensions/arc/src/test/mocks/fakeAzdataApi.ts

@@ -33,6 +33,7 @@ export class FakeAzdataApi implements azdataExt.IAzdataApi {
 						adminPassword?: boolean,
 						coresLimit?: string,
 						coresRequest?: string,
+						coordinatorEngineSettings?: string,
 						engineSettings?: string,
 						extensions?: string,
 						memoryLimit?: string,
@@ -40,6 +41,7 @@ export class FakeAzdataApi implements azdataExt.IAzdataApi {
 						noWait?: boolean,
 						port?: number,
 						replaceEngineSettings?: boolean,
+						workerEngineSettings?: string,
 						workers?: number
 					},
 					_additionalEnvVars?: azdataExt.AdditionalEnvVars