mi-Bf refactoring and tests

[MurathanGoktas]

This mi-Bf implementation is easier to use, neat and similar to other Bf implementations in btllib. It doesn't have redundant functions needed for biobloomtools and ready-to-use as it doesn't require any other mi-Bf construction helper script.

To Do before requesting a real PR:

• [x] Pass CI tests
• [x] Spaced seed compatibility
• [x] Create a recipe for mi-Bf generation
• [x] Warning and Error checks
• [x] Explore ways of utilizing BloomFilter::save for miBf
• [x] Vlad's note: MIBF uses __sync_fetch_and_or for atomicity which isn't standardized by C++, it should instead use atomic types (like other Bloom filter classes).

[parham-k]

Perfect! Feel free to merge/close/delete :)