Add datavirtualization extension (#21594)

* initial

* cleanup

* Add typings ref

* fix compile

* remove unused

* add missing

* another unused

* Use newer vscodetestcover

* newer dataprotocol

* format

* cleanup ignores

* fix out path

* fix entry point

* more cleanup

* Move into src folder

* Handle service client log messages

* remove unused

extensions/datavirtualization/src/typings/globals/istanbul/index.d.ts

@@ -0,0 +1,72 @@
+// Generated by typings
+// Source: https://raw.githubusercontent.com/DefinitelyTyped/DefinitelyTyped/56295f5058cac7ae458540423c50ac2dcf9fc711/istanbul/istanbul.d.ts
+declare module 'istanbul' {
+  namespace istanbul {
+    interface Istanbul {
+      new (options?: any): Istanbul;
+      Collector: Collector;
+      config: Config;
+      ContentWriter: ContentWriter;
+      FileWriter: FileWriter;
+      hook: Hook;
+      Instrumenter: Instrumenter;
+      Report: Report;
+      Reporter: Reporter;
+      Store: Store;
+      utils: ObjectUtils;
+      VERSION: string;
+      Writer: Writer;
+    }
+
+    interface Collector {
+      new (options?: any): Collector;
+      add(coverage: any, testName?: string): void;
+    }
+
+    interface Config {
+    }
+
+    interface ContentWriter {
+    }
+
+    interface FileWriter {
+    }
+
+    interface Hook {
+      hookRequire(matcher: any, transformer: any, options: any): void;
+      unhookRequire(): void;
+    }
+
+    interface Instrumenter {
+      new (options?: any): Instrumenter;
+      instrumentSync(code: string, filename: string): string;
+    }
+
+    interface Report {
+    }
+
+    interface Configuration {
+      new (obj: any, overrides: any): Configuration;
+    }
+
+    interface Reporter {
+      new (cfg?: Configuration, dir?: string): Reporter;
+      add(fmt: string): void;
+      addAll(fmts: Array<string>): void;
+      write(collector: Collector, sync: boolean, callback: Function): void;
+    }
+
+    interface Store {
+    }
+
+    interface ObjectUtils {
+    }
+
+    interface Writer {
+    }
+  }
+
+  var istanbul: istanbul.Istanbul;
+
+  export = istanbul;
+}

extensions/datavirtualization/src/typings/globals/istanbul/typings.json

@@ -0,0 +1,8 @@
+{
+	"resolution": "main",
+	"tree": {
+		"src": "https://raw.githubusercontent.com/DefinitelyTyped/DefinitelyTyped/56295f5058cac7ae458540423c50ac2dcf9fc711/istanbul/istanbul.d.ts",
+		"raw": "registry:dt/istanbul#0.4.0+20160316155526",
+		"typings": "https://raw.githubusercontent.com/DefinitelyTyped/DefinitelyTyped/56295f5058cac7ae458540423c50ac2dcf9fc711/istanbul/istanbul.d.ts"
+	}
+}