refactor(compiler_cli): move it into modules/@angular and integrate properly into the build

This also does no more depend on a version
on npm for the compiler_cli.

Also runs the tests for tools/metadata

modules/@angular/compiler_cli/integrationtest/src/a/multiple_components.html

@@ -0,0 +1 @@
+<div></div>

modules/@angular/compiler_cli/integrationtest/src/a/multiple_components.ts

@@ -0,0 +1,21 @@
+import {Component} from '@angular/core';
+
+@Component({
+  selector: 'my-comp',
+  template: '<div></div>',
+})
+export class MyComp {
+}
+
+@Component({
+  selector: 'next-comp',
+  templateUrl: './multiple_components.html',
+})
+export class NextComp {
+}
+
+// Verify that exceptions from DirectiveResolver don't propagate
+export function NotADirective(c: any): void {}
+@NotADirective
+export class HasCustomDecorator {
+}