add prompt autogeneration

[jgbradley1]

This PR adds several things

• a new help menu was added to the deploy.sh script
• several flags were added to deploy.sh that enable better dev access (i.e. granting managed identity access, disabling private endpoints)
• add a new endpoint that auto-generate 3 prompt files that can be used to tune graphrag to private data
• disabled all entity configuration API endpoints for now
• updated HelloWorld notebook to remove all references to entity configurations and now focuses on the auto-templating approach

[jgbradley1]

Developers can now deploy graphrag with the command

bash deploy.sh -g -p deploy.parameters.json

The -g flag will disable private endpoints AND grant Managed identity roles to AI Search, Storage, and CosmosDB so that data can be viewed from the Azure Portal.