Source cleanups and "prototype" target for gcc6809 Various whitespace/source cleanups for the gcc6809 patch. Also add an m6809-proto target with attendant changes for crt0. From Mark R V Murray <mark@grondar.org>.

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

# for windows
\.suo$
\.sdf$
\.opensdf$
\Debug$
\Release$