Thanks to @vitalogy for serdisplib and the hint to libugpio, and to @cvh for the dm140 patch.
@vitalogy I picked up your pull request #1156 in this one, in order to move and further update serdisplib.
serdisplib: use libusb-config from sysroot
libugpio: initial package
lcdd: update to c05a7de, reintroduce dm140, build with libugpio