fix(rtdb): Changed admin.database to use database-compat package (#1437)

* fix: Changed admin.database to use database-compat package

* fix: Upgraded to latest staged versions of compat packages

* fix: Added dom for test compilation which includes Auth types

* fix: Using single quotes as per our convention

* fix: Using the new database-compat/standalone entrypoint

* fix: Changed versions to released tags

gulpfile.js

@@ -54,7 +54,9 @@ var paths = {
 // emitted.
 var buildProject = ts.createProject('tsconfig.json', { rootDir: 'src', declarationMap: true });
 
-var buildTest = ts.createProject('tsconfig.json');
+// Include dom libraries during test compilation since we use some web SDK
+// libraries in our tests.
+var buildTest = ts.createProject('tsconfig.json', { lib: ['es2018', 'dom'] });
 
 var banner = `/*! firebase-admin v${pkg.version} */\n`;