Refactor libs into @umbraco-cms/backoffice/* (#608)

* merge libs rollup configs to one rollup

* move css from libs to src/core

* run rollup on cms build

* move test-utils to /utils folder

* move css to src/core

* mark @umbraco-cms/backoffice as external when building for CMS

* rename all models to include @umbraco-cms/backoffice in their path to allow us to publish as a single module

* rename all imports to @umbraco-cms/backoffice/*

* rename events to umb-events to avoid rollup error of protected module name(?)

* test that libs can build

* move css to src/core

* move umb-lit-element and modal elements to src/core

* move some modal interfaces back to libs/modal

* move the icon store into src/core since it is very localized to the backoffice

* comment out build:libs for now since Github runs out of memory

* rename to match tsconfig alias

* add package.json to libs

* only make libs for lib folders

* turn off emit for typescript since we are handling types for libs separately

* build libs locally

* add script to move libs to final destination with some transform

* move libs after build

* move package.json to dist folder first (so we can publish from there)

* remove inline comments

* ensure the outputDir exists

* Remove re-export of extensions-registry library from models library

* move to individual files to avoid circular imports

* check if outputDir exists before trying to create it

* write transforms first in dist file and then copy the file to outputDir

* ensure all umbraco types are external

* copy information from main package.json file

src/Umbraco.Web.UI.Client/libs/context-api/consume/context-consumer.controller.ts

@@ -1,7 +1,7 @@
 import { UmbContextToken } from '../context-token';
 import { UmbContextConsumer } from './context-consumer';
 import { UmbContextCallback } from './context-request.event';
-import type { UmbControllerHostInterface, UmbControllerInterface } from '@umbraco-cms/controller';
+import type { UmbControllerHostInterface, UmbControllerInterface } from '@umbraco-cms/backoffice/controller';
 
 export class UmbContextConsumerController<T = unknown>
 	extends UmbContextConsumer<UmbControllerHostInterface, T>

src/Umbraco.Web.UI.Client/libs/context-api/provide/context-provider.controller.test.ts

@@ -1,7 +1,7 @@
 import { expect, fixture, defineCE } from '@open-wc/testing';
 import { UmbContextConsumer } from '../consume/context-consumer';
 import { UmbContextProviderController } from './context-provider.controller';
-import { UmbLitElement } from '@umbraco-cms/element';
+import { UmbLitElement } from '@umbraco-cms/internal/lit-element';
 
 class MyClass {
 	prop = 'value from provider';

src/Umbraco.Web.UI.Client/libs/context-api/provide/context-provider.controller.ts

@@ -1,6 +1,6 @@
 import { UmbContextToken } from '../context-token';
 import { UmbContextProvider } from './context-provider';
-import type { UmbControllerHostInterface, UmbControllerInterface } from '@umbraco-cms/controller';
+import type { UmbControllerHostInterface, UmbControllerInterface } from '@umbraco-cms/backoffice/controller';
 
 export class UmbContextProviderController<T = unknown>
 	extends UmbContextProvider<UmbControllerHostInterface>

src/Umbraco.Web.UI.Client/libs/context-api/rollup.config.js

@@ -1,4 +0,0 @@
-import config from '../../utils/rollup.config.js';
-export default [
-	...config,
-];