Generate chatbot to guide people on how to use H2O-3

[wendycwong]

Use h2ogpte to generate chatbot and guide a user on how to use H2O-3. As an example from @mn-mikke, a user brings a dataset to our chatbot and the following flow should appear:

User: I want to build a h2o-3 model with my dataset,
chatbot: Sure, we can build a GBM model with your dataset and you can use the following snippet:

import h2o......
....
model = .....

User will proceed and build the model using the code snippet and then ask the following question:
User: How can I get the model AUC (assume it is classification):
chatbot: please call model.auc() to get your model AUC value.....

Ideally I would like to see the following:

1. Should put an emphasis on advocating autoML;
2. Should advocate using more powerful toolbox first like GBM, DRF, Deeplearning and etc

I am going to start off and just setup the framework. Probably will need other team member's help to make this complete.

[wendycwong]

Here is a link from @mtanco on how to write apps for GenAI: https://h2oai.atlassian.net/wiki/spaces/HAIC/pages/4013981698/Public+GenAI+Apps+Best+Practices