add original base* and evdev.lst
renamed base* evdev* and adapted rules for tech layouts
R_AltGr by default in tech(pc) and remove Mod3 for mode without overlay
disable CapsLock for tech keys by adding FOUR_LEVEL_NUM and FOUR_LEVEL_NUM_VKP types
symbols, compat, rats-conf object renamed and code correction
tech layout v0.5, remove <BKSL> modifiers, update kbl files
correct rats 0.1 key placement and update rats, frt, bepo comments
update evdev* rules :
	- use option instead of variant for modifiers switch
	- add layout variants rules
	- code debugging
add test.sh script
update README to v0.5