Add base Firebird dialect implementation

[vasiliy-yashkov]

Problem

The current implementation of the kafka-connect-jdbc does not support the Firebird. It does not allow to use some features, i.e. upsert. In addition, the base dialect does not take into account the mapping between Firebird data types and Kafka schema types.

Solution

Creating a dialect for Firebird that implements and overrides basic features of the generic database dialect.

Does this solution apply anywhere else?

• yes
• no

Test Strategy

Several unit tests have been added to test the Firebird dialect. Manual testing was done with docker-compose, which was running kafka, connect-jdbc and the Firebird server. Testing was performed on Firebird 4.0.1 and Jaybird 4.0.5 for Java 11 / JDBC 4.3.

Testing done:

• Unit tests
• Integration tests
• System tests
• Manual tests

[CLAassistant]

All committers have signed the CLA.

[vasiliy-yashkov]

Hi all! Can anyone review?

[dieterrosch]

Anyone?

[nicpym-bbd]

Hi, I am running into the same timestamp issue, and this PR fixes that. Can anyone please review?