Add global attachments and errors API (#74)

rft labels from environment utility (fixes #59, via #60)

added attributes for standard labels and attribute sets support (fixes …

…#33, via #58)

support loading labels from environment and build improvements (fixes #…

…51, via #50)

Delete draft-release.yml

remove deprecations (via #25)

misc (fixes #20, fixes #22, fixes #23, via #24)

add label verify workflow

rft labels and statuses api (fixes #11, fixes #12, fixes #13, via #14)

add legacy traits (fixes #9, via #10)