[dawn-node]: Move TSC config to file. (#1382)

This PR pulls the typescript config out of the grunt file and adds
the options into the `node.tsconfig.json` file. This also disables
the `incremental` flag in order to work around incorrectly
regenerating the test suite.

The removal of `incremental` takes the Building CTS step to
~14s locally.

Gruntfile.js

@@ -62,10 +62,6 @@ module.exports = function (grunt) {
           'node_modules/typescript/lib/tsc.js',
           '--project', 'node.tsconfig.json',
           '--outDir', 'out-node/',
-          '--incremental', 'true',
-          '--tsBuildInfoFile', 'out-node/build.tsbuildinfo',
-          '--noEmit', 'false',
-          '--declaration', 'false'
         ],
       },
       'copy-assets': {

node.tsconfig.json

@@ -5,7 +5,10 @@
 {
   "extends": "./tsconfig.json",
   "compilerOptions": {
-    "module": "commonjs"
+    "module": "commonjs",
+    "incremental": false,
+    "noEmit": false,
+    "declaration": false,
   },
 
   "exclude": [
@@ -14,4 +17,4 @@
     "src/common/runtime/helper/test_worker.ts",
     "src/webgpu/web_platform/worker/worker_launcher.ts"
   ]
-}
+}