Add functions and gRPC server

[FelixKuhnAnsys]

• added config
• added dockerfile
• populated externalfunctions (including slight changes to the functions; i.e. removal of session context)
• added functiondefinitions to fill internalstates available functions on launch
• added grpc protos file and generate grpcdefinition
• added grpc server to expose three function: listFunctions, runFunction, streamFunction
• added internalstates

[wiz-inc-572fc38784]

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[RobPasMue]

I've got some concerns here, mostly with the proto files. We shouldn't be committing the autogenerated code. We should be generating it on the fly when building the library.

Also, it seems like the docstrings are not being build into the docs. We need to modify the docs/api section to include the new sections

[FelixKuhnAnsys]

I've got some concerns here, mostly with the proto files. We shouldn't be committing the autogenerated code. We should be generating it on the fly when building the library.

Also, it seems like the docstrings are not being build into the docs. We need to modify the docs/api section to include the new sections

maybe we can move the whole grpc definition to sharedtypes at a later point? otherwise we would need another public repo for it. for now andreas said to keep it here do to time constraints.

not sure where/how to modify the docs/api, maybe we can do it together on monday and you can show me? i think this can be done in a seperate pr though