Added fedora package entries

I've added entries of the Fedora package names. A few queries though:

1. I see a few places where `yum:` has been added under `fedora:`, is this necessary?
2. Do I need to add the `devel` packages, or just the runtime packages, or should this be based on whether the requirement says `dev`?
3. Can I add package groups? For example, fedora doesn't have an eclipse package, but it does have an `@eclipse` group that pulls in a lot of the eclipse packages. If rosdep just uses `yum install <package>`, then `@packagegroup` will work, since it'll expand to `yum install @packagegroup`.

Please do review the additions and let me know if you have any queries. I'll make whatever changes are needed.