Remove try..except in import for service classes

[ansjmoody]

📝 Description of the feature

In order to reduce errors and clean up the code, it is desired to change the try..except used for importing service classes to import the service classes from ansys.api.sherlock.v0.

E.g. in model.py:
try:
import SherlockModelService_pb2
from SherlockModelService_pb2 import MeshType, TraceOutputType
import SherlockModelService_pb2_grpc
except ModuleNotFoundError:
from ansys.api.sherlock.v0 import SherlockModelService_pb2
from ansys.api.sherlock.v0.SherlockModelService_pb2 import MeshType, TraceOutputType
from ansys.api.sherlock.v0 import SherlockModelService_pb2_grpc

Change this to:
from ansys.api.sherlock.v0 import SherlockModelService_pb2
from ansys.api.sherlock.v0.SherlockModelService_pb2 import MeshType, TraceOutputType
from ansys.api.sherlock.v0 import SherlockModelService_pb2_grpc

💡 Steps for implementing the feature

No response

🔗 Useful links and references

No response

[ansjmoody]

The notes for environment setup should change as well.