Update the "users" / "use cases" field in machine-learning-model component

Proposal: based on research of model cards across HuggingFace, Google, and Meta, there seem to be a common way of breaking down usage: "direct/intended use," "out of scope" usage, and "misuse / malicious use."

Request: Remove the "users" and "use cases" fields, and replace them with the model below:

"usage" : [
"intended-use": "how is the model intended to be used, primary use case.",
"out-of-scope": "out of scope usage.",
"misuse-or-malicious": "examples of usage considered to be misuse or malicious use."
]

Required: True
Type: Array of strings.