Added Fedora library extensions to gitignore
Added Fedora library extensions to gitignore

Compiling in Fedora produces `.debug` and `.so.debug` files in the /bin directory. This commit adds such files to .gitignore so that they are not tracked.
LorenzE/mne-cpp,chdinh/mne-cpp,mne-tools/mne-cpp,ViktorKL/mne-cpp,mne-tools/mne-cpp,chdinh/mne-cpp,chdinh/mne-cpp,mne-tools/mne-cpp,mne-tools/mne-cpp,mne-tools/mne-cpp,mne-tools/mne-cpp,LorenzE/mne-cpp,chdinh/mne-cpp,ViktorKL/mne-cpp,chdinh/mne-cpp,LorenzE/mne-cpp,chdinh/mne-cpp,LorenzE/mne-cpp