move adf-extensions lib to the ADF repo (#3781)

* adf-extensions lib

* remove console.log calls

* integrate with angular.json

* fix output path

* update scripts

* Add extensions to scripts

* update travis setup

* Travis step II.

lib/extensions/tsconfig.lib.json

@@ -0,0 +1,34 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../out-tsc/lib",
+    "target": "es2015",
+    "module": "es2015",
+    "moduleResolution": "node",
+    "declaration": true,
+    "sourceMap": true,
+    "inlineSources": true,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "importHelpers": true,
+    "types": [],
+    "lib": [
+      "dom",
+      "es2015"
+    ]
+  },
+  "angularCompilerOptions": {
+    "annotateForClosureCompiler": true,
+    "skipTemplateCodegen": true,
+    "strictMetadataEmit": true,
+    "fullTemplateTypeCheck": true,
+    "strictInjectionParameters": true,
+    "flatModuleId": "AUTOGENERATED",
+    "flatModuleOutFile": "AUTOGENERATED",
+    "enableResourceInlining": true
+  },
+  "exclude": [
+    "src/test.ts",
+    "**/*.spec.ts"
+  ]
+}