Move src/api and part of src/aedoc into api-extractor-model folder

Author: octogonz

…-extractor/src/aedoc/AedocDefinitions.ts …ctor-model/src/aedoc/AedocDefinitions.tsapps/api-extractor/src/aedoc/AedocDefinitions.ts renamed to apps/api-extractor-model/src/aedoc/AedocDefinitions.ts apps/api-extractor/src/aedoc/AedocDefinitions.ts renamed to apps/api-extractor-model/src/aedoc/AedocDefinitions.ts

@@ -8,6 +8,9 @@ import {
   StandardTags
 } from '@microsoft/tsdoc';
 
+/**
+ * @internal
+ */
 export class AedocDefinitions {
   public static readonly betaDocumentation: TSDocTagDefinition = new TSDocTagDefinition({
     tagName: '@betaDocumentation',