Links for yowasp-nextpnr-ice40-u4k

yowasp_nextpnr_ice40_u4k-0.4.post79.dev377-py3-none-any.whl
yowasp_nextpnr_ice40_u4k-0.5.dev381-py3-none-any.whl
yowasp_nextpnr_ice40_u4k-9999-py3-none-any.whl