* Add binary_compression value to each package
* Remove binary_url values and arrays
* Handle packages with empty binary_sha256 arrays (either missing binaries or not compiled by us)
new package py3_installer
new package py3_pep517
new package py3_tomli
add new buildsystem to buildessential
add constants to const.rb for new buildsystem
new package py3_flit_core
new package py3_flit
add py3_flit_core to buildessential
new package py3_tomli_w
add x86_64 and i686 binaries
fix flit-core and tomli-w binaries
bump crew version
update pyparsing and packaging
oops py3_packaging depends on py3_pyparsing (add x86_64 and i686 binaries)
py3_pyparsing does not depend on itself
add arm binaries