Changelog:
==========
-Add bypass-selection option to the wheel build target to allow for empty
(metadata-only) wheels
-Fix regression in 1.19.1 that allowed exclude to count toward inclusion
selection, thus bypassing the default inclusion selection heuristics
-Fix writing optional dependency core metadata in situations where there
are multiple environment markers
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>