Added UMS device selector and more fixes.

Fixes .avi support, web scrapping and possibly more networking stuff.

Added a menu to change the mounted device/partition (no fancy stuff until i figure out how to update pplay submenus)

Small fixes and Read Only Mounting

3.1-usb2

Now mounting read only

implemented libusbhsfs

NTFS and exFAT formatted hard drives with external power supplies work great.
My FAT32 USB3.0 flash drive made the app crash when i tried playing a 2h long movie but it worked fine with smaller files.
Only tried mp4's, probably needs more testing.