New commands 'afm' and 'Vdj' (to merge two functions) WIP

* Update SDB from Git
Fix some cppcheck warnings
Fix #1682 - Fix ELF null deref regression with rabin2 -c
cppcheck: fix 1 'else if' cond matches previous cond + test indice before using it
Prevent Infinite Loop

max_size may be unnecessary as a loop sentinel.
Remove all max_size vars
Fix asan script (thx zlul)
Make the bp api slightly saner
Revert dac7dbdc8941f839e7ba9c2ffba983be6cd1c6c5
Random fixes for #! and #!vala
Fix relative paths in #!vala
Fix #1693 - nullcmd repeat $aliased commands too
Fix #1670 - r2 -d 'ls -l /' working again
Load file from stdin with `r2 =` (TODO: load RBin)
fix crash in rasm2 'add eax, /'
add disassembler for i4004
Fix crash in RCore.Plugin liberator
fix 'r2 -q'-segfault
Fix build
Fix i4004.mk
Fix #1698 - dr rflags=cpz is now supported