Leverage snowflake connection configuration using python connector library instead of duplicating connection logic in schemachange

[sfc-gh-tmathew]

Is your feature request related to a problem? Please describe.
It is not a problem but it is better to delegate connection logic to the snowflake python connector instead of implementing elaborate connection logic in schemachange code base.

Describe the solution you'd like
Build a breaking change release 4.0 that leverages all connection options provided by snowflake python connector and use the connector library's exception handling propogated to schemachange output.

Describe alternatives you've considered
Have not considered other alternatives.

Additional context
N/A