[SEDONA-539] Support Snowflake geography type

[jiayuasu]

Did you read the Contributor Guide?

• Yes, I have read the Contributor Rules and Contributor Development Guide

Is this PR related to a JIRA ticket?

• Yes, the URL of the associated JIRA ticket is https://issues.apache.org/jira/browse/SEDONA-539. The PR name follows the format [SEDONA-539] my subject.

What changes were proposed in this PR?

1. Sedona Snowflake DDL generator produces DDL for snowflake geography type functions
2. Add a single test to verify if the geography type works.

How was this patch tested?

Passed existing tests and the new test.

Tested at: wherobots#22

Did this PR include necessary documentation updates?

• Yes, I have updated the documentation.