Feature: build step logs tailing

[viraptor]

I'd love to be able to tail a specific step of the build in my terminal.

I imagine it would work with something like:

bk build create ...
# get the build id

bk build log (build id) "Step name"
# downloads the output

bk build tail (build id) "Step name"
# follows output of a running step

[mcncl]

@viraptor 👋 with the release of 3.x.x I'm taking a look through issues opened to see what we might be able to add; there isn't really a way for us to do this given logs don't stream to an API endpoint, so we'd either need to print job logs as a job finished, which isn't a stream you can then "tail". We have added in the bk build watch command which will kind of tail to the terminal as job states change/update and will update the build state too. Let us know if that covers your needs, given log streaming isn't really an option, at least in a live sense.