Rename GPLv3 document as LICENSE, to fit better the GitHub requirements. Text / Licen...

Rename GPLv3 document as LICENSE, to fit better the GitHub requirements. Text / License terms are the same.
Added ui, alpine & debugger groups in the settings.
Added the --es-all, --es-ui, --es-alpine & --es-debugger  options for the erase features.
Moved the log.cpp, file.cpp, settings.cpp, crc32.cpp & unzip.cpp files outside the jaguarcore lib.
Modified a bit the Visual Studio project.