Upgrade to Angular 7 for GUI2

Change-Id: I5085bacb347ffc9af78cf7d3408853f76a5812a0
diff --git a/web/gui2-fw-lib/projects/gui2-fw-lib/package.json b/web/gui2-fw-lib/projects/gui2-fw-lib/package.json
index a130774..288b753 100644
--- a/web/gui2-fw-lib/projects/gui2-fw-lib/package.json
+++ b/web/gui2-fw-lib/projects/gui2-fw-lib/package.json
@@ -2,7 +2,7 @@
   "name": "gui2-fw-lib",
   "version": "0.14.0",
   "peerDependencies": {
-    "@angular/common": "^6.0.0-rc.0 || ^6.0.0",
-    "@angular/core": "^6.0.0-rc.0 || ^6.0.0"
+    "@angular/common": "^7.0.0 || ^6.0.0-rc.0 || ^6.0.0",
+    "@angular/core": "^7.0.0 || ^6.0.0-rc.0 || ^6.0.0"
   }
 }