ports #12237, #12258 and #12259 into master (#12274)

* treat failures to resolve module name as missing packages (#12237)

* added extra check to prevent multiple installation of the same typing, added version field to telemetry event (#12258)

* added extra check to prevent multiple installation of the same typing, added version field to telemetry event

* use ts.version

* switch to execSync to ensure that no install orders are interleaved (#12259)

* Make sure version is public

* Update file with version string for nightly release

src/server/protocol.ts

@@ -2106,6 +2106,11 @@ namespace ts.server.protocol {
          * true if install request succeeded, otherwise - false
          */
         installSuccess: boolean;
+
+        /**
+         * version of typings installer
+         */
+        typingsInstallerVersion: string;
     }
 
     export interface NavBarResponse extends Response {