chore: remove @angular/animations from peerDeps, add TypeScript

@angular/animations are not required for every Angular applications.
When installing `nativescript-angular`, the user shouldn't see a warning
for unmet peer dependency if he's not using @angular/animations.
TypeScript should be >2.2 or tns-core-modules won't be working, so we
should have this as peer dependency.

Author: sis0k0

nativescript-angular/package.json

@@ -47,12 +47,12 @@
     "@angular/common": "~4.0.0",
     "@angular/compiler": "~4.0.0",
     "@angular/platform-browser": "~4.0.0",
-    "@angular/animations": "~4.0.0",
     "@angular/router": "~4.0.0",
     "@angular/forms": "~4.0.0",
     "@angular/http": "~4.0.0",
     "tns-core-modules": "^3.0.0 || ^3.0.0-rc.1 || >=3.0.0-2017",
     "rxjs": "^5.0.1",
+    "typescript": "^2.2.0",
     "zone.js": "^0.8.4"
   },
   "devDependencies": {