Similaripy

- add support for new c++ compilers

- support for latest macOS releases
- migrating from Travis to Github Actions for CI/CD

- same as v0.0.14, just start new numerical version pattern in order to have the possibility of fix little changes without having the constraint of draft a new release

- adding filter_cols option in all similarities
- adding target_cols option in all similarities

Add check dtype in normalization functions.

adding normalization functions: l1, l2, max, tf-idf, bm25, bm25+

no more sklearn dependency