Refactor aos_rpc and add proc_man

milestone5
Merge remote-tracking branch 'origin/djole_m5' into milestone/5
Move proc_man to separate process

DOES NOT WORK!
About to start moving memserver to init
Move memserv and procman to init
Add aos_rpc_process_spawn
Add spawn_module
Fix aos_rpc_process_spawn
Add get_name
Implement missing rpc calls

They are really nasty, need to refactor
Add ps call
Add semaphores for get input
Add kill
Change stdin owner