lv2 SysCalls implemented & Minor changes

lv2 SysCalls:
* Changed layout of sc_table: This is just a proposal, if you don't like
it, I will undo this.
* Added following functions in sys_process: sys_process_get_paramsfo,
sys_process_get_id, sys_process_get_number_of_object,
sys_process_getppid
* Updated sys_ppu_thread_detach function
* Added sys_timer functions
* Binded cellFsStat function with ID 808 (0x328)

Minor changes in SELF loader. By the way, /scetool/scetool.cpp is OK. In
my last commit I mentioned the sources were a mess, but they are fine.