Finalize the new profiles design

[xivk]

We want a new profile implementation because the current one is too slow. The lua interpreter is the issue. We have a few options:

• keep lua but figurr out how to improve performance
• use an alternative language perhaps just C# itself

[xivk]

Webassembly running in .NET could also be an option: https://github.com/RyanLamansky/dotnet-webassembly/issues