Loader: Keep a reference to the file and pass it to the correct AppLoader, instead of loading it multiple times.

APTU: Stubbed NotifyToWait, taken from 3dmoo.

AddrArbiter: Implement arbitration types 3 and 4.

Also renamed some handles in the APT:U service to be more descriptive.
Fixed a typo in InquireNotification

Pica/Rasterizer: Add ETC1 texture decompression support.

Services: Added some missing services.

cfg:s, ptm:sysm, apt:s.
apt:s is almost exactly the same as apt:u as per 3dbrew

vfp: Remove dead code

Pica/VertexShader: Implement the MAD instruction.

Pica/VertexShader: Implement JMPC/JMPU/CALLC/CALLU.

dyncom: Fix 32-bit ASR shifts for immediates

dyncom: Remove unused flag macros

Qt Callstack: Clear the callstack every time it's updated

dyncom: Fix some more V-flag setting ops. Plus some cleanup.

Also cleans up CMN, and CMP.

This fixes the issue that old members of the callstack would stick around, even when the callstack shortened.

Fix MinGW build, again

dyncom: Fix ADC overflow flag setting

SVC: Wake up the thread after the delay in WaitSync1

dyncom: Fix conditional execution of MSR

Replace OnCpuStepped signal