[Configs] Add environment vars to change storage to SettingsStore

Author: dvesh3

.env

@@ -19,3 +19,14 @@ APP_ENV=dev
 #TRUSTED_PROXIES=127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16
 #TRUSTED_HOSTS='^(localhost|example\.com)$'
 ###< symfony/framework-bundle ###
+
+PIMCORE_WRITE_TARGET_IMAGE_THUMBNAILS=settings-store
+PIMCORE_WRITE_TARGET_CUSTOM_REPORTS=settings-store
+PIMCORE_WRITE_TARGET_VIDEO_THUMBNAILS=settings-store
+PIMCORE_WRITE_TARGET_DOCUMENT_TYPES=settings-store
+PIMCORE_WRITE_TARGET_WEB_TO_PRINT=settings-store
+PIMCORE_WRITE_TARGET_PREDEFINED_PROPERTIES=settings-store
+PIMCORE_WRITE_TARGET_PREDEFINED_ASSET_METADATA=settings-store
+PIMCORE_WRITE_TARGET_STATICROUTES=settings-store
+PIMCORE_WRITE_TARGET_PERSPECTIVES=settings-store
+PIMCORE_WRITE_TARGET_CUSTOM_VIEWS=settings-store