feat(NgMessages): introduce the NgMessages module and directives

The ngMessages module provides directives designed to better support
handling and reusing error messages within forms without the need to
rely on complex structural directives.

Please note that the API for ngMessages is experimental and may possibly change with
future releases.

angularFiles.js

@@ -80,6 +80,9 @@ angularFiles = {
     'ngCookies': [
       'src/ngCookies/cookies.js'
     ],
+    'ngMessages': [
+      'src/ngMessages/messages.js'
+    ],
     'ngResource': [
       'src/ngResource/resource.js'
     ],
@@ -128,6 +131,7 @@ angularFiles = {
     'test/auto/*.js',
     'test/ng/**/*.js',
     'test/ngAnimate/*.js',
+    'test/ngMessages/*.js',
     'test/ngCookies/*.js',
     'test/ngResource/*.js',
     'test/ngRoute/**/*.js',
@@ -189,6 +193,7 @@ angularFiles = {
 
 angularFiles['angularSrcModules'] = [].concat(
   angularFiles['angularModules']['ngAnimate'],
+  angularFiles['angularModules']['ngMessages'],
   angularFiles['angularModules']['ngCookies'],
   angularFiles['angularModules']['ngResource'],
   angularFiles['angularModules']['ngRoute'],