I have an adapter TP Link T2U with the chipset mt7610u.
Is it possible to add a driver to the next version?
MT7610U is supported since 8.95.7.
As @TheCoolest says this has been supported since 8.95.7, it was listed in the changelog, personally tested this driver myself.
I have is worth Coreelec 8.99.12 fork Alex
command output lsusb Bus 001 Device 007: ID 0bda:c811 Realtek Semiconductor Corp
ifconfig he’s gone
We don’t support the AlexELEC “fork”.
Erm… This is a Realtek chip not MediaTek 
We don’t offer support to users of builds with pirate related content and that violate the GPL.