UUID type handler

[girdhar-singh-rathore]

In many database systems, UUIDs are commonly used as unique identifiers. However, developers often need to write their own custom type handlers to manage UUIDs effectively. To streamline this process and reduce the need for repetitive code, we have included a UUIDTypeHandler in our library. This type handler simplifies the handling of UUIDs in SQL operations, ensuring seamless integration and improved efficiency.

[harawata]

Thank you for the PR, @girdhar-singh-rathore ,

You are not the first user who proposed UUID type handler (e.g. #1609 ).
We do not provide a built-in UUID type handler because different types are used to store UUID.

VARCHAR or other text type is widely used and you seem to assume it is always the case.
However, PostgreSQL has UUID type and BINARY(16) is a better choice for some other DBs.
This means that different API method (e.g. set/getString, set/getObject, set/getBytes) has to be used in the type handler implementation [1][2].

I am going to close this PR as "won't fix".
Let me know if you need any further clarification.

[1] https://stackoverflow.com/a/62753853/1261766
[2] https://stackoverflow.com/a/74639510/1261766