Simple dbg.c file
Added TODO_DBG
Moved output functions to out/write.[ch]
Basic debug location output
Added `make debug' target for lib/ with debug symbols
Don't pass -g to the assembler
Merge branch 'master' into feature/dbg
Set where-locations on all statements and decl-inits
Prologue debug location
Merge branch 'master' into feature/dbg

Conflicts:
	src/cc1/fold.c
Add escapes for debug filename
Manual DWARF debug sections
Added DIEs for subprogram _start and int type
Basic compile-unit and type debug output
Added all basic types to debug output
More basic types in manual debug asm
Manual debug info for global variables
Incomplete debug info dumps for variables
Skeleton for DWARF debug output for types
Output correct pointer size