Direct3D9 support

[Adhenovan]

yeah i can try it again , i will be happy to help

here is the test revision v0.9.9.1-478-g23ade61

this glitch only occured if i changed the setting after the game run
MHFU
Hardware Transform on , software skinning on , disable vertex cache after the game run
   

Hardware Transform on , disable or enable software skinning after the game run , vertex cache off
   

Hardware Transform off , software skinning off , vertex cache off
   
correct graphic changed the setting after the game run

all above options displaying correct graphic after resetting ppsspp
mhfu run full speed with or without software skinning (Good work )

Mhp3rd HD test
Hardware Transform on , disable or enable software skinning after the game run , vertex cache on
   

Hardware Transform on , software skinning on , vertex cache on
   
its stable but cant reach full speed this game is not happy with software skinning on

Hardware Transform on , software skinning off, vertex cache on and restarting ppsspp
   
almost full speed and the random slowdown is gone with software skinning off

i think this ancient laptop cant keep up with mhp3rd HD game, its run full speed on quest but not in town with software skinning off , as always good improvement

which is better for ppsspp x86 or x64 ? because i can install windows 8 64bit on this ancient laptop , and let me know again if new d3d9 commit is merged i will test it again , good luck with the work ^^