0.9.3 - Ensure postgresql schema on append

Ensure Postgresql schema is used on data append

During inejction of data store results into Postgresql no verifications on the datatypes were executed, now we add a check and tentative conversion of types to existing schema if target table exists on append mode

What's Changed

• Afos/get postgres schema before send if exists by @neomatamune in #51

Full Changelog: 0.9.2...0.9.3