DMA timing renovation (#1207)

* make timers usable for measurement shito without being assfuckingly unreliable

* bürp

* Arisotura can you ever clean up your goddamn code

also regroup the timer code instead of having it split weirdly

* make the set-timing functions a tad less hacky

* congrats Arisotura you made an ass-enum

* add timing region tables, and separate timings for ARM9 DMA (exempt of 3c penalty)

* temp work on DMA timings, not finished

also, did you know? 'increment/reload' is also a thing for the source address

* begin work

* add some of the GBA slot/wifi timings

* complete it, I guess

* make some progress

* getting somewhere

* sdsdfs

* see, Arisotura, was it that hard? blarg.

src/CMakeLists.txt

@@ -15,6 +15,7 @@ add_library(core STATIC
 	CP15.cpp
 	CRC32.cpp
 	DMA.cpp
+	DMA_Timings.h
 	DSi.cpp
 	DSi_AES.cpp
 	DSi_Camera.cpp