Add thumbprint parameter to Connect.
Add thumbprint parameter to Connect.

Add thumbprint parameter to Connect method with default None. Allows thumbprint of connection target to be validated against certificate. SoapStubAdapter already provides a thumbprint parameter. When provided and thumbprint does not match the SoapStubAdapter raises and exception. When the thumbprint matches (or if no thumbprint is provided) then the connection succeeds. This change simply exposes the parameter through Connect and __Login methods.

Infinidat/pyvmomi,vmware/pyvmomi,tianhao64/pyvmomi,hartsock/pyvmomi,higebu/pyvmomi