[Proposal/Request] Requesting role helper methods

[spaceemotion]

This is a request for the following role helper methods:

• User::is(array $roles) Checks if the user belongs to all the defined roles: $user->is(['moderator‘, 'editor']);
• User::isNot(array $roles) Checks if the user does not belong to all the defined roles: $user->isNot(['moderator‘, 'editor']);
• User::isOneOf(array $roles) Checks if the user belongs to at least one of the defined roles: $user->isOneOf(['moderator‘, 'editor']);
• User::isNoneOf(array $roles) Checks if the user does not belong to at least one of the defined roles: $user->isNoneOf(['moderator‘, 'editor']);

Side Note: For the developers that still require 5.3 and hence have no access to the new array syntax a shorted version for each of the listed functions above would be appreciated (User::is(String $role) -> return $this->is(array($role));).

[ahmadshah]

+1 for the helpers

[spaceemotion]

maybe it could be even changed to mixed $var - so it could either be a role object, a string or an array of strings or role objects ...

just a thought.

[crynobone]

Added via #6