add TODO list
-rw-r--r-- 909 Makefile
-rw-r--r-- 431 README
-rw-r--r-- 2328 TODO
drwxr-xr-x - arch
-rw-r--r-- 10 config.mak
drwxr-xr-x - include
drwxr-xr-x - src
drwxr-xr-x - test