Oracle: add OracleChatMemory support

[fanxt0218]

add the support for oracle

[ilayaperumalg]

@fanxt0218 Thanks for the PR! Could you add the schema and the corresponding integration test?

[fanxt0218]

感谢 PR！您能否添加架构和相应的集成测试？

Ok, I've added oracle's schema and integration test classes and made it a new commit. Please review
In my environment, it passed all the test cases

[ilayaperumalg]

@fanxt0218 Thanks for the heads up!

[psilberk]

Hi @fanxt0218 would you like to invite me as contributor to update this PR with some minor updates and specific stuff from Oracle (Im an Oracle employee)

[fanxt0218]

Hi @fanxt0218 would you like to invite me as contributor to update this PR with some minor updates and specific stuff from Oracle (Im an Oracle employee)

Of course@psilberk! Please check the invitation message. In the fan branch of this PR's forked repository.

[psilberk]

Can you update the branch with the latest changes and resolve its conflicts? (I don't think I can do it).

[fanxt0218]

Can you update the branch with the latest changes and resolve its conflicts? (I don't think I can do it).

I have resolved the conflicts and merged the latest code.