GUI: s/savegame/saved game/

Makes it consistant throughout the GUI
CLI: change "savegames" into "saved games", same as in GUI
CGE2: Add detection for Sfinx v1.0 Freeware Polish
Merge pull request #492 from BenCastricum/misc

GUI: replace "savegame" by "saved game".
README: savegame -> saved game
README: savestate -> saved game
MADS: Converting text view to use existing drawing frameweork