Enable Test Python SDK

[dehume]

Fixes #4

Enable tests for the Python SDK. This is based on the tests for the Snowflake Pulumi provider and should be easy to extend to other SDKs once enabled.

Configures a basic Python project in examples/user/py, uses the provider built locally at sdk/{SDK Language}.

Also for ease of testing, allowing environment variables to set provider level configurations within the Config in the resources.go. The environment variables match the TF provider:

Attribute	Environment Variable
host	MZ_HOST
user	MZ_USER
password	MZ_PASSWORD
port	MZ_PORT
database	MZ_DATABASE
sslmode	MZ_SSLMODE

[bobbyiliev]

Very nice! Thank you @dehume!