hidinput: supports Rpi touchscreen by processing standard ABS X/Y/Pressure events. Ref #2656
hidinput: fix pressure case
hidinput: fix pressure case when reading events
hidinput: added rotation configuration token for hidinput
add optional flipped param to pil image save
newline added for better formatting
Merge pull request #2695 from chozabu/pil_can_flip_on_save

add optional flipped param to pil image save
hidinput: fix inversion on Y
Merge branch 'support-rpi-touchscreen'. Closes #2656