Added the Self Serve Data Model (#367)

* added recursion and inition decorators

* working version

* added todo comment and removed console.log

* Added Recursive add

* removed type requirement

* proper resolution of promises

* added custom element and base class

* Made selfServe standalone page

* Added custom renderer as async type

* Added overall defaults

* added inital open from data explorer

* removed landingpage

* added feature for self serve type

* renamed sqlx->example and added invalid type

* Added comments for Example

* removed unnecessary changes

* Resolved PR comments

Added tests
Moved onSubmt and initialize inside base class
Moved testExplorer to separate folder
made fields of SelfServe Class non static

* fixed lint errors

* fixed compilation errors

* Removed reactbinding changes

* renamed dropdown -> choice

* Added SelfServeComponent

* Addressed PR comments

* merged master

* added selfservetype.none for emulator and hosted experience

* fixed formatting errors

* Removed "any" type

* undid package.json changes

webpack.config.js

@@ -143,7 +143,7 @@ module.exports = function(env = {}, argv = {}) {
     }),
     new HtmlWebpackPlugin({
       filename: "testExplorer.html",
-      template: "test/notebooks/testExplorer/testExplorer.html",
+      template: "test/testExplorer/testExplorer.html",
       chunks: ["testExplorer"]
     }),
     new HtmlWebpackPlugin({
@@ -184,7 +184,7 @@ module.exports = function(env = {}, argv = {}) {
       index: "./src/Index.ts",
       quickstart: "./src/quickstart.ts",
       hostedExplorer: "./src/HostedExplorer.tsx",
-      testExplorer: "./test/notebooks/testExplorer/TestExplorer.ts",
+      testExplorer: "./test/testExplorer/TestExplorer.ts",
       heatmap: "./src/Controls/Heatmap/Heatmap.ts",
       terminal: "./src/Terminal/index.ts",
       notebookViewer: "./src/NotebookViewer/NotebookViewer.tsx",