[Mypy] Add public API files (Part 1) to mypy coverage

[sfc-gh-stan]

Add type hints changes such that tox -e mypy passes for

• src/snowflake/snowpark/window.py
• src/snowflake/snowpark/udaf.py
• src/snowflake/snowpark/stored_procedure.py
• src/snowflake/snowpark/table.py
• src/snowflake/snowpark/udf.py
• src/snowflake/snowpark/types.py
• src/snowflake/snowpark/table_function.py
• src/snowflake/snowpark/relational_grouped_dataframe.py
• src/snowflake/snowpark/row.py
• src/snowflake/snowpark/session.py
• src/snowflake/snowpark/udtf.py