Arsenalgear

Updates

- Added Python library version under the `python` folder.
- Added a new function `agr::multi` to the cpp code.
- General functions update.
- Documentation update.
- Minor bugs fixing.

Updates

- `Operator *` redefinition for string objects multiplication by integers has been made template, in order to support other string-type objects.
- All the constants have been made `inline constexpr`.
- A new script `update` has been provided in order tu update the whole repository.
- Generic code update.
- Added CITATION.cff file.
- Documentation update.

First beta release of the repository.