Upcoming improvement tasks

Hello folks, Here the tasks I am planning to work on: - [x] CI/CD & Hex badges (#181) - [x] Bump OTP version using GitHub workflows (#192) - [x] put tests in dedicated files 1. #183 2. #184 3. #185 4. #186 5. #187 6. #188 7. #189 - [x] add thousand separators in digits (#180) - [x] bump years in copyrights (#182, [the older the better)](https://en.wikipedia.org/wiki/Berne_Convention) - [x] use maps instead of proplists (will leave as it is: proplists are barely used): ```erlang % git grep proplist src/ec_file.erl: case proplists:get_value(recursive, Options, false) of src/ec_file.erl: copy_file_info(To, From, proplists:get_value(file_info, Options, [])); src/ec_file.erl: case proplists:get_value(Info, WriteInfoFuns, undefined) of src/ec_semver_parser.erl: case proplists:lookup(Name, Plist) of ``` Any other thoughts? I will appreciate your feedback.