[Task] Add explanation for conversion from SAMM to AASX and vice versa on ESMF documentation

[KobOp]

Situation
Currently there is no official explanation or guidelines for users who wants to convert SAMM to AASX (AAS files with their environment as a package). There is a description for converting SAMM to AAS is described here https://eclipse-esmf.github.io/esmf-developer-guide/2.2.2/tooling-guide/samm-cli.html , but this should be more specific.

Describe the solution you'd like
There should be a dedicated section in the ESMF documentation to support the integration between SAMM and AASX, e.g. who would need this conversion, and how to convert between two models. Also explaining the difference between AAS and AASX, how and when users would need which one.

Describe alternatives you've considered
A reference on the ESMF documentation for more elaborated detail on the SAMM and AASX conversion, which can be a link to README.md in the ESMF or RBS repository.