HLE: sceUsb stubs.
Use the CPU for download on non-NVIDIA cards.

Fixes #6494.
Delete temporary/blitting FBOs on device lost.

Fixes issues when the device goes to sleep with Danganronpa, block
transfers, etc.
When applying the Danganronpa hack, force 5551.

This prevents dithering from happening during the blit, and since
dithering is off during drawing, allows the colors to be correct on some
devices which always dither during blits.
Merge pull request #6502 from unknownbrackets/danganronpa-hack2

When applying the Danganronpa hack, force 5551
Merge pull request #6493 from xsacha/master

HLE: sceUsb stubs.
Fix savestates broken by #6493.
x86jit: Flush the PC before r/w in debug.

This way we get better log output.
Minor logging improvement.
Flush icache before memcpys.

Maybe there's a way to optimize this better...
Merge pull request #6503 from unknownbrackets/jit-minor

Flush the icache before memcpys
Keep track of ranges that have emuhack ops.

So that we can invalidate them smarter.
Merge pull request #6505 from unknownbrackets/jit-minor

Keep track of ranges that have emuhack ops
Win32: Make pausing when minimizing optional in the ini.
Pause rendering when minimized, when appropriate (hopefully? This is sort of hard to test.).
Make the ini tweak available for everybody.