archive: Store include/exclude instructions in metadata

I was thinking that being able to look up what this archive should actually include could be a helpful feature.

1. To find out what actually should be included/excluded in this archive.
2. For clients to suggest to inherit the include/exclude from the latest archive while adding a backup to the client.

This would require collecting all the `--pattern`, `--exclude`, `--exclude-from` sources and to be exact also the `--keep-exclude-tags`, `--exclude-if-present`, `--exclude-caches` information and store them for each archive.