Adalbert Makarovych

[Task]: Implement SingleStoreDB IO Connector

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### What needs to happen? Consider building a Java IO PTransform for the [SingleStoreDB](https://docs.singlestore.com/) SingleStoreDB is a cloud-native database designed for data-intensive applications. A distributed, relational, SQL database management system...

SingleStoreDB support

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Added a connector for [SingleStoreDB](https://www.singlestore.com/) The connector uses [SingleStore JDBC driver](https://docs.singlestore.com/db/v7.6/en/developer-resources/connect-with-application-development-tools/connect-with-java-jdbc/the-singlestore-jdbc-driver.html) SingleStoreDB is compatible with MySQL but the syntax of some queries is different and it doesn't support some MySQL...

Added connection attributes to SingleStore

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Setting connection attributes allows SingleStore to get more visibility on what connectors are used by customers and prioritize work on them.