build(examples): include in main tsconfig.json

Also rename `examples/tsconfig.json` into `examples/tsconfig-build.json`
so that it does not shadow the main `tsconfig.json` in editors

Also adds `noImplicitAny` and `declarations`
`examples/tsconfig.json`.

modules/@angular/examples/build.sh

@@ -13,7 +13,7 @@ cd `dirname $0`
 
 DIST="../../../dist/examples";
 rm -rf -- $DIST
-$(npm bin)/tsc -p .
+$(npm bin)/tsc -p ./tsconfig-build.json
 
 mkdir $DIST/vendor/
 

modules/@angular/examples/tsconfig-build.json

@@ -1,8 +1,10 @@
 {
   "compilerOptions": {
     "baseUrl": ".",
+    "declaration": true,
     "stripInternal": true,
     "experimentalDecorators": true,
+    "noImplicitAny": true,
     "module": "commonjs",
     "moduleResolution": "node",
     "outDir": "../../../dist/examples",