Next refactoring of the server

[arves100]

This PR allows to take a look at the next code structure of the server.
The refactoring allows the gimufronter server to:

• Bump to C++20 support, therefore enables Coroutines to being used which simplifies all the database operations
• Use the new packet generator to provide a new unified way to share network/mst data
• Use glaze C++ json parser which would speed up loading time
• An occasion to change some stuff (like logging) in an attempt to make the code easy to read

Currently the code might not build/work and testing is required.

[arves100]

ready to go !!