Loading TLS certificates from Windows certificate store

[tnoczyns-volue]

The gRPC runtime (gRPC core) used by Python does not read TLS certificates from Windows certificate store, but instead uses built-in list of trusted roots, see: https://github.com/grpc/grpc/blob/master/etc/roots.pem.

As a result when a customer is using for example certificates signed by company's CA the Python Mesh SDK client still needs to provide the certificate explicitly.

Explore the possibility of loading TLS certificate from Python code.
If possible then create an example/utility function/separate library for that. So that customers can re-use it.