Some connection property did not work

[howryu]

Attempting to use the ACCOUNT= connection string parameter WITHOUT a HOST= parameter will fail due to an invalid string formatter being used (%s instead of {0}
).

Even fixing the string formatter issue with the ACCOUNT= the standard URL that is built does not work and returns a 403 when we attempt to login. Explicitly setting the HOST= to: zp51084.us-east-1.snowflakecomputing.com allows us to login.
The ROLE=, DB=, SCHEMA=, WAREHOUSE= connection string parameters do not seem to work, even setting a WAREHOUSE= parameter we still need to execute a USE WAREHOUSE statement when the connection opens otherwise a warehouse will not be chosen.

[howryu]

One known issue is that region property is not implemented.

[howryu]

Fixed in #45 #44