Add pfield_doline() acceleration (general and for ARM processors) ba…
Created by: repojohnray
…sed upon uae4all2 5c514dd6d8bb374bd22e2ee423bad99539207cbd
New feature: add full ARM 'thumb2' compatibility, here is the required compiler flags: '-mthumb -DARM -DUSE_ARMNEON' (The classical ARM instruction set is still available, compiler flags: '-marm -DARM -DUSE_ARMNEON')