Renamed souce files of services to match port names
Fix some warnings
Merge pull request #160 from Gareth422/working

Renamed souce files of services to match port names
FS:USER - Implemented IsSdmcDetected
Merge pull request #161 from archshift/sdmc-detected

FS:USER - Implemented IsSdmcDetected
Merge pull request #162 from SeannyM/warning-fixes

Fix some warnings
Added CreateDirectory function to service/fs.cpp, and in Archive.