Feature request - add values.schema.json file for proper validation of values.yaml

[gecube]

Good day!

I think it would be beneficial to add values.schema.json file as it will give ability to verify the contents of values.yaml This is a widely used practice. Just one example: https://github.com/hashicorp/vault-helm/blob/main/values.schema.json

The schema could be autogenerated: https://github.com/losisin/helm-values-schema-json