Merge latest changes to branch 'main' into branch 'development'

[jlw387]

This pull request is for merging the latest changes to the main branch into the development branch. These changes include:

• Adding support for multiple solutes in the function create_solution()
• Improved error handling for convert_one() and create_solution() functions
• Additional testing for create_solution()
• NumPy version clamping to 1.23.5
• Updated release number (0.4.5 -> 0.4.7)

[jlw387]

Stricter branch protections will be implemented in the near future which will include a requirement that branches be up-to-date when merging with main or development. Thus, it is important that development be up-to-date with main to avoid issues with future merges.