Rename repository

[PMeira]

Most likely to "AltDSS_Engine" or something like that. Update references in the docs accordingly.

[PMeira]

Probably going with AltDSS-Core due to the various components being published here in the future:

• (Alt)DSS C-API
• AltDSS engine/library
• Oddie, which exposes EPRI's binaries as AltDSS C-API
• DSS-Extensions COM Bridge
• AltDSS.hpp
• User models and a few examples