Add fcgid options

This adds fcgid.conf to configure the fcgid module. It also adds the
FcgidWrapper option to vhost's directories.

The vhost option lacks any validation and allows users to shoot
themselves in the foot, but without iteration from the puppet future
parser I don't see a way to add the validation. Iteration would also
allow auto including apache::mod::fcgid.
Merge pull request #716 from ekohl/fcgid

Add fcgid options