Cannot create OAuth Session when creating HydroShare object

[aaraney]

The HydroShare object intends to allows a user to create a session using oauth credentials. However, HydroShareSession's constructor enforces username and password as positional/keyword arguments without a default (see below). So, this causes a HydroShare object to fail to construct when passing in oauth credentials as it does not specify a username or password.

See source

class HydroShareSession:
    def __init__(self, username, password, host, protocol, port, client_id=None, token=None):
        ...

Having already talked to @sblack-usu about this, the proposed solution is to make the username, password,client_id, andtokenparameters keyword only arguments with a default value ofNone`. Ill ref the PR that implements this solution and should close this issue here.