Expose more facts about user on host system

Adds:
  - `user_uid`
  - `user_gid`
  - `user_gecos`
  - `user_dir`
  - `user_shell`

lib/ansible/module_utils/facts.py

@@ -29,6 +29,7 @@ import socket
 import struct
 import datetime
 import getpass
+import pwd
 import ConfigParser
 import StringIO
 
@@ -476,6 +477,12 @@ class Facts(object):
     # User
     def get_user_facts(self):
         self.facts['user_id'] = getpass.getuser()
+        pwent = pwd.getpwnam(getpass.getuser())
+        self.facts['user_uid'] = pwent.pw_uid
+        self.facts['user_gid'] = pwent.pw_gid
+        self.facts['user_gecos'] = pwent.pw_gecos
+        self.facts['user_dir'] = pwent.pw_dir
+        self.facts['user_shell'] = pwent.pw_shell
 
     def get_env_facts(self):
         self.facts['env'] = {}