Make clear_bss work regardless of load address

Fix tzram_map_all_segments

Can't copy to VAs if VA don't exist (at that point of the program)

Fix the set_memory_registers_enable_mmu call

Fix ttbl init pointer arith bug, other fixes

Clear bss at runtime like Nintendo actually does

Implement flush_dcache_all_tzram_pa and invalidate_icache_all_inner_shareable_tzram_pa for the crt0s

Implement and use set_memory_registers_enable_mmu

Use provided __libc_init_array and __libc_fini_array, bugfixes

Unstub lma2vma code

Rewrite the memory map-related code... ...

...other style fixes, etc.

Failed attempt to fix loops not being unrolled, other fixes.

Move source files to src/, add Makefile, fix all build and linkage errors, etc.