Commit
7dbb2dc316fd85051a59471b4e36587de0c873b2
by nghervellatsk23 Adds user login and logout
Add UserManagedBean file where login and logout functions are located.
The .xhtml and .css files with the template and style of the view are
also added. The button that redirects to the login view or allows the
user to logout is added in the template.xhtml file.