Refactor out extensions-modules and rewrite mssql extension (#909)

* commting .d.ts changes

* added serverinfo to .d.ts

* maybe its working?

* works

* updated contrib

* remove unnecessary code

* fix compile errors

* init

* conitnue

* on the way to working maybe?

* close

* EVERYTHING WORKS

* moved src out of client folder

* formatting

* reenable logging

* working on build file

* fixed install service gulp command

* fix the command to properly return promises

* clean up code

* add telemetry

* formatting

* added logging/telemetry/statusview

* formatting

* address comments

* resolute vscode-language versions

extensions/account-provider-azure/package.json

@@ -19,8 +19,8 @@
   "contributes": {
     "commands": [
       {
-        "command": "extension.clearTokenCache",
-        "title": "%extension.clearTokenCache%",
+        "command": "accounts.clearTokenCache",
+        "title": "%accounts.clearTokenCache%",
         "category": "Azure Accounts"
       }
     ],