WebUI: User management full implementation.

Added webui user accounts management. This support
both redfish and rest based backend API calls
depending on redfishSupportEnabled flag.
It does following actions:
 - View all user list and there properties like
   name, privilege, enabled state, Locked etc..
 - Create new user account.
 - Delete existing user account.
 - Update the existing user properties like
   password, privilege, enabled state.

Unit Test:
 - Viewed all user information is proper or not.
 - Created new user and validated.
 - Deleted specific user and checked.
 - Modified user info and validated the change.
All tests are done by enabling and disabling
redfishSupportEnabled flag using conifg.json.

Change-Id: Ifecf63844dc42c44771509958bf75947a92997ac
Signed-off-by: AppaRao Puli <apparao.puli@linux.intel.com>
diff --git a/app/users/styles/index.scss b/app/users/styles/index.scss
index 5162e09..da9c25e 100644
--- a/app/users/styles/index.scss
+++ b/app/users/styles/index.scss
@@ -1 +1 @@
-@import "./user-accounts.scss";
\ No newline at end of file
+@import "./user-accounts.scss";