Enable PostgreSQL table creation within pw

[vladjohnson]

Is your feature request related to a problem? Please describe.
There is no option to create PostgreSQL tables directly within pw. This limitation forces me to switch between SQLAlchemy and pw, adding unnecessary complexity and time to the workflow. Given that we already have defined a schema in pathway, why not use that to create a table?

Describe the solution you'd like
I would like pw to natively support the creation of PostgreSQL tables.

Describe alternatives you've considered
Writing SQLAlchemy code.

Additional context
Integrating this feature could significantly enhance the development experience for users who work with PostgreSQL databases. Providing a user-friendly interface for table creation would align well with pw's mission of simplifying workflows.