feat(color_eyre): add support to specify verbosity in HookBuilder
In situations where setting the environment is unsafe it would be more convenient to manually specify the verbosity without using the environment at all.
Looks good, I'm happy to merge this with the addition of some tests. Particularly what happens when conflicting verbosity is set via both the hook builder and the env.
Sorry for being incommunicado for the past few days, I'll go ahead and fix Clippy failing. As it's configured right now, verbosity that is specified in HookBuilder overrides environment, though it is possible to write another function that would instead have environment override specified verbosity.
Never mind about Clippy, all the warnings are not from changes in this pull request.
clippy warnings should be fixed now
@yaahc Is this ready to be merged, or is there something else I should do?