#64115094 lib + bug + no tests
#64115094 add lib fix + tests
#64115094 add migrations
#64115094 add bug
#64115094 make test for make_hash method
#64115094 clear some comments
#64115094 add fix test
Merge pull request #60 from HH-project/image_to_hash

(#64115094) create field of hash in Image table