requirements: also add a generaldelta constant
Continue the cleanup to the remaining requirements
Differential Revision: https://phab.mercurial-scm.org/D10106
requirements: add constant for revlog v1 requirement
Since this series is adding a new requirement, we might as well clean up while
we're here.
Differential Revision: https://phab.mercurial-scm.org/D10105
error: add `hint` attribute to `SidedataHashError`
This prevents an exception within an exception because `hint` does not exist.
Differential Revision: https://phab.mercurial-scm.org/D10024