[ADF-3299] and [ADF-3300] upgrade to Angular and Material 6 (#3579)

* upgrade to HttpClient

* upgrade to Renderer2

* upgrade Document reference

* remove useless test with deprecated ReflectiveInjector

* upgrade to latest typescript

* upgrade libs

* upgrade package scripts

* remove rxjs blacklists and duplicate rules

* add rxjs compat to help with migration

* fix breaking changes

* fix breaking changes in material

* fix breaking changes (material 6)

* upgrade rxjs, ngx-translate and flex layout

* update unit tests

* restore providers

* upgrade deprecated Observable.error

* rebase
fix first configuration problems

* fix style issues commented

* fix core build

* fix lib template errors

* move lib test execution in angular.json

* ignore

* karma conf files

* fix import statement test

* single run option

* update packages reporter

* restore report

* increase timeout

* improve karma conf test configuration

* fix test issues about lint

* fix test analytics

* fix process service test

* content service fix test

* fix logout directive test

* fix core test

* fix build

* update node-sass to latest

* update angular cli dependencies

* improve build script

create directorites and move files only if previous command succeded

* upgrade individual libs to 6.0

* remove old webpack files

* revert sass change

* fix type issues
fix style issues

* fix tslint demo shell issue

* fix peerdependencies

* fix test e2e BC

* package upate

* fix style import issue

* extract-text-webpack-plugin beta

* fix test dist build command

* remove alpha js-api

* fix tslint issue
add banner tslint rule

* upload service fix

* change BC script

* fix test dist script

* increase demo shell timeout test

* verbose copy

* path absolute

* fix script bc

* fix copy part

* fix path warning
fix monaco editor

* remove duplicate header

* remove unused import

* fix align and check ago tests

* add missing import

* fix notification button selector

* [ANGULAR6] fixed core tests

* fix CS test

* fix cs test step 2

* increase travis_wait for dist

* fix attachment PS

* fix checklist test

* use pdf min

lib/process-services/content-widget/attach-file-widget.component.ts

@@ -30,10 +30,8 @@ import {
 } from '@alfresco/adf-core';
 import { ContentNodeDialogService } from '@alfresco/adf-content-services';
 import { MinimalNodeEntryEntity } from 'alfresco-js-api';
-import { Observable } from 'rxjs/Observable';
-import 'rxjs/add/observable/from';
-import { zip } from 'rxjs/observable/zip';
-import { of } from 'rxjs/observable/of';
+import { from, zip, of } from 'rxjs';
+import { mergeMap } from 'rxjs/operators';
 
 @Component({
     selector: 'attach-widget',
@@ -184,24 +182,27 @@ export class AttachFileWidgetComponent extends UploadWidgetComponent implements
     }
 
     private uploadFileFromCS(fileNodeList: MinimalNodeEntryEntity[], accountId: string, siteId?: string) {
-        let filesSaved = [];
-        Observable.from(fileNodeList)
-            .mergeMap(node =>
-                zip(of(node.content.mimeType), this.activitiContentService.applyAlfrescoNode(node,
-                    siteId,
-                    accountId))
-            ).subscribe(([mymeType, res]) => {
-                res.mimeType = mymeType;
-                filesSaved.push(res);
-            },
-            (error) => {
-                this.logger.error(error);
-            },
-            () => {
-                this.field.value = filesSaved;
-                this.field.json.value = filesSaved;
-                this.hasFile = true;
-            });
+        const filesSaved = [];
+        from(fileNodeList).pipe(
+            mergeMap(node =>
+                zip(
+                    of(node.content.mimeType),
+                    this.activitiContentService.applyAlfrescoNode(node, siteId, accountId)
+                )
+            )
+        )
+        .subscribe(([mymeType, res]) => {
+            res.mimeType = mymeType;
+            filesSaved.push(res);
+        },
+        (error) => {
+            this.logger.error(error);
+        },
+        () => {
+            this.field.value = filesSaved;
+            this.field.json.value = filesSaved;
+            this.hasFile = true;
+        });
     }
 
 }