[Subtask] initialization Gravitino Python client

[xunliu]

Describe the subtask

Design according to the proposed document: https://docs.google.com/document/d/1Eq9qd94967cYpSagTps34vHbHNhO4VMPs4R-6tNK8Eo/edit,
we consider initialization Gravitino Python client.

1. Create Gravitino Python client module in the gravitino/clients/client-python/* directory.
2. Use Python REST library requests to connector Gravitino Server RESTful interface.
3. Implementation getVersion() Python function in the gravitino/clients/client-python/core directory.
4. Implementation getVersionTest() UnitTest in the gravitino/clients/client-python/tests directory.
5. We can reference to Gravitino JAVA client implementation, https://github.com/datastrato/gravitino/blob/main/clients/client-java/src/main/java/com/datastrato/gravitino/client/GravitinoClient.java

We can refer to this article to create a Python library step by step. https://towardsdatascience.com/deep-dive-create-and-publish-your-first-python-library-f7f618719e14

Parent issue

#2113

[xunliu]

hi @Lanznx
Are you interested in implementing this task?

[Lanznx]

yes, i'm willing to do it