- force kernel reschedule after svcWaitSynchronization
- fixed some bugs with passing in pointer arguments
- cleaned up some comments and log messages

hle: removed PARAM64 macro (this was incorrect), made several bug fixes accordingly for decoding U64 function parameters

service: changed  interface to return 0 (no error) when a service method is unimplemented - hack to make apps boot further

svc: changed SendSyncRequest to use Kernel::Object SyncRequest (instead of just service Interface class)

core: added Kernel::Reschedule() call to check for thread changes, shortened delay time to 100 instructions

svc: added a check to ensure that a service was implemented before attempting to connect to its port

thread: removed unused SwitchContext/Reschedule reason field, added missing arg parameter to SVC CreateThread

thread: moved ThreadStatus/WaitType to header, added support for arg on CreateThread, added correct CPSR reset