add cube iwork 8 (i1-TC) Dual OS firmware

[lvneg1]

origin firmware is in Windows/Android directories. transformed using ./fwtool -c firmware.fw -w 880 -h 1660 -t 10 -f swap silead_ts.fw

could fix screen touch problems tested on ubuntu 16.04

[onitake]

Can you add a readme with hardware information as well? See other readme files in the repo for reference. Thank you!

[a843161264]

it works, thanks!