tree shaking support for services (#3906)

[ADF-3697] tree shaking support for services

lib/content-services/content-metadata/services/basic-properties.service.ts

@@ -19,7 +19,9 @@ import { Injectable } from '@angular/core';
 import { MinimalNodeEntryEntity } from 'alfresco-js-api';
 import { CardViewDateItemModel, CardViewTextItemModel, FileSizePipe } from '@alfresco/adf-core';
 
-@Injectable()
+@Injectable({
+    providedIn: 'root'
+})
 export class BasicPropertiesService {
 
     constructor(private fileSizePipe: FileSizePipe) {

lib/content-services/content-metadata/services/config/content-metadata-config.factory.ts

@@ -28,7 +28,9 @@ import {
     LayoutOrientedConfig
 } from '../../interfaces/content-metadata.interfaces';
 
-@Injectable()
+@Injectable({
+    providedIn: 'root'
+})
 export class ContentMetadataConfigFactory {
 
     static readonly INDIFFERENT_PRESET = '*';

lib/content-services/content-metadata/services/content-metadata.service.ts

@@ -26,7 +26,9 @@ import { ContentMetadataConfigFactory } from './config/content-metadata-config.f
 import { PropertyDescriptorsService } from './property-descriptors.service';
 import { map } from 'rxjs/operators';
 
-@Injectable()
+@Injectable({
+    providedIn: 'root'
+})
 export class ContentMetadataService {
 
     constructor(private basicPropertiesService: BasicPropertiesService,

lib/content-services/content-metadata/services/property-descriptors.service.ts

@@ -21,7 +21,9 @@ import { Observable, defer, forkJoin } from 'rxjs';
 import { PropertyGroup, PropertyGroupContainer } from '../interfaces/content-metadata.interfaces';
 import { map } from 'rxjs/operators';
 
-@Injectable()
+@Injectable({
+    providedIn: 'root'
+})
 export class PropertyDescriptorsService {
 
     constructor(private alfrescoApiService: AlfrescoApiService) {}

lib/content-services/content-metadata/services/property-groups-translator.service.ts

@@ -39,7 +39,9 @@ const D_FLOAT = 'd:float';
 const D_DOUBLE = 'd:double';
 const D_BOOLEAN = 'd:boolean';
 
-@Injectable()
+@Injectable({
+    providedIn: 'root'
+})
 export class PropertyGroupTranslatorService {
 
     static readonly RECOGNISED_ECM_TYPES = [ D_TEXT, D_MLTEXT, D_DATE, D_DATETIME, D_INT, D_LONG , D_FLOAT, D_DOUBLE, D_BOOLEAN ];