perl development group in comps

[Marcela Maslanova]

Perl development group in comps again! In case you check available 
groups in yum, then you can see there is no problem in adding another one.

As was mentioned in https://bugzilla.redhat.com/show_bug.cgi?id=508194
some of our users might find this group useful. I suppose Chris Weyl has 
good ideas which packages should be included. If there is no simple 
choice which packages should go into this group, then we can create a 
wiki page and make a list according to users choice, cpan downloads or 
whatever.
-- 
Marcela Mašláňová
BaseOS team Brno