chore: update ng versions

Author: tgpetrov

src/angular/index.metadata.json

@@ -1 +1 @@
-[{"__symbolic":"module","version":3,"metadata":{},"exports":[{"from":"./nativescript-facebook-module"}]},{"__symbolic":"module","version":1,"metadata":{},"exports":[{"from":"./nativescript-facebook-module"}]}]
+[{"__symbolic":"module","version":4,"metadata":{},"exports":[{"from":"./nativescript-facebook-module"}]}]

src/angular/nativescript-facebook-directives.metadata.json

@@ -1 +1 @@
-[{"__symbolic":"module","version":3,"metadata":{"FacebookLoginButtonDirective":{"__symbolic":"class","decorators":[{"__symbolic":"call","expression":{"__symbolic":"reference","module":"@angular/core","name":"Directive"},"arguments":[{"selector":"FacebookLoginButton"}]}]},"DIRECTIVES":[{"__symbolic":"reference","name":"FacebookLoginButtonDirective"}]}},{"__symbolic":"module","version":1,"metadata":{"FacebookLoginButtonDirective":{"__symbolic":"class","decorators":[{"__symbolic":"call","expression":{"__symbolic":"reference","module":"@angular/core","name":"Directive"},"arguments":[{"selector":"FacebookLoginButton"}]}]},"DIRECTIVES":[{"__symbolic":"reference","name":"FacebookLoginButtonDirective"}]}}]
+[{"__symbolic":"module","version":4,"metadata":{"FacebookLoginButtonDirective":{"__symbolic":"class","decorators":[{"__symbolic":"call","expression":{"__symbolic":"reference","module":"@angular/core","name":"Directive","line":2,"character":1},"arguments":[{"selector":"FacebookLoginButton"}]}]},"DIRECTIVES":[{"__symbolic":"reference","name":"FacebookLoginButtonDirective"}]}}]

src/angular/nativescript-facebook-module.metadata.json

@@ -1 +1 @@
-[{"__symbolic":"module","version":3,"metadata":{"NativeScriptFacebookModule":{"__symbolic":"class","decorators":[{"__symbolic":"call","expression":{"__symbolic":"reference","module":"@angular/core","name":"NgModule"},"arguments":[{"declarations":[{"__symbolic":"reference","module":"./nativescript-facebook-directives","name":"DIRECTIVES"}],"exports":[{"__symbolic":"reference","module":"./nativescript-facebook-directives","name":"DIRECTIVES"}]}]}]}}},{"__symbolic":"module","version":1,"metadata":{"NativeScriptFacebookModule":{"__symbolic":"class","decorators":[{"__symbolic":"call","expression":{"__symbolic":"reference","module":"@angular/core","name":"NgModule"},"arguments":[{"declarations":[{"__symbolic":"reference","module":"./nativescript-facebook-directives","name":"DIRECTIVES"}],"exports":[{"__symbolic":"reference","module":"./nativescript-facebook-directives","name":"DIRECTIVES"}]}]}]}}}]
+[{"__symbolic":"module","version":4,"metadata":{"NativeScriptFacebookModule":{"__symbolic":"class","decorators":[{"__symbolic":"call","expression":{"__symbolic":"reference","module":"@angular/core","name":"NgModule","line":5,"character":1},"arguments":[{"declarations":[{"__symbolic":"reference","module":"./nativescript-facebook-directives","name":"DIRECTIVES","line":6,"character":19}],"exports":[{"__symbolic":"reference","module":"./nativescript-facebook-directives","name":"DIRECTIVES","line":7,"character":14}]}]}]}}}]

src/package.json

@@ -58,11 +58,11 @@
         "tns-core-modules": "^4.0.0",
         "tns-platform-declarations": "^4.0.0",
         "typescript": "~2.7.2",
-        "nativescript-angular": "^5.0.0",
-        "@angular/core": "~5.0.0",
-        "@angular/common": "~5.0.0",
-        "@angular/compiler": "~5.0.0",
-        "@angular/compiler-cli": "~5.0.0",
+        "nativescript-angular": "~6.0.6",
+        "@angular/core": "~6.0.6",
+        "@angular/common": "~6.0.6",
+        "@angular/compiler": "~6.0.6",
+        "@angular/compiler-cli": "~6.0.6",
         "rxjs": "5.4.2",
         "zone.js": "~0.8.4",
         "tslint": "~5.4.3"