Fix --section-start handling and add --map to ld wrapper. Fixed error where --section-start was passed to lwlink instead of --section-base. Also added --map to ld wrapper. Thanks to pulkomandy@pulkomandy.tk for pointing out the former and mentioning the lack of the latter.

\.exe$
\.o$
\.d$
\.a$
~$
\.orig$
/lwbasic$
/lwlink$
/lwobjdump$
/lwar$
/lwasm$
/lwcc/lwcc$
/lwcc/lwcpp$