elf: add growAllocSection and growNonAllocSection

Update `Dwarf.zig` to use `growNonAllocSection` for ELF and implement
routine to make space for `.debug_line` header.
d7e42014caJakub Konka committed on 12/9/2022, 8:24:25 AMparentaa2f48f
2 files changedLine totals unavailable