hidd: remove quirks

We do not support real HIDs.
hidd: no sdp HID to parse

Remove that code.
hidd: remove bootproto support
hidd: implement sdp store/get

We need textfile.c for that.
hidd: slice textfile to a bare minimum
hidd: remove orphan uinput.h
hidd: unify header to have only one
hidd: rename to l2cap
hidd: add autoconf basics

Not finished yet.