[ADF-2054] Created a new widget to handle uploading file from Share (#2810)

* [ADF-2054] start creating custom upload widget for share integration

* [ADF-2054] changed content node selector service to allow different opening approach

* [ADF-2054] addedd support for multi resource files

* [ADF-2054] fixed base case for upload when only local files are selected

* [ADF-2054] start adding and fixing tests for new share attach button widget

* [ADF-2054] changed test to perfrom a correct check

* [ADF-2054] removed fdescribe

* [ADF-2054] added test for share-widget component

* [ADF-2054] added peer reviews changes

* [ADF-2054] created a module folder for content widgets

* [ADF-2054] fixed wrong import

* [ADF-2054] fixed rebase errors

* [ADF-2054] restored some files changed by rebase

* [ADF-2054] added link to content services to fix packaging issue

* [ADF-2054] renamed widget

lib/ng-package/ng-package-process.json

@@ -13,6 +13,7 @@
       "@angular/material": "@angular/material",
       "@angular/flex-layout": "@angular/flex-layout",
       "@alfresco/adf-core": "@alfresco/adf-core",
+      "@alfresco/adf-content-services": "@alfresco/adf-content-services",
       "@angular/material-moment-adapter": "@angular/material-moment-adapter",
       "@angular/animations": "@angular/animations",
       "@angular/cdk/platform": "@angular/cdk/platform",