This commit:
* defines a `Ignore` protocol in `dvc.objects`, that expects a `find` method.
This will be used in dvc-data and dvc-objects instead of depending on dvc.ignore.
dvcignore is expected to respect this protocol, which it does.
* renames `dvcignore` kwarg to `ignore` in `dvc-data` and `dvc-objects`.
* teaches dvc.cli that `IgnoreInCollectedError` is a known exception
and is logged correctly and adds a test for the behaviour.
I am not happy that we need to hardcode `.dvcignore` in dvc-data
but I don't see any easy way, since we always try to avoid
staging if the tree contains .dvcignore file, even if .dvcignore
is not passed.
Saugat Pachhai (सौगात)
32cd6c2c03