FindLATEX: Search user-local MiKTeX locations

I was helping a co-worker with our Doxygen generation code and I noticed that the FindLatex could not find MikTex installs in Roaming. I wasn't sure if an HKEY reference would be better here and my google foo couldn't find a common HKEY_CURRENT_USER location for APPDATA. MikTex seems to always install in to LOCALAPPDATA but I wanted to support the Roaming profile if it was there.