Delta sharing provider resource

[stikkireddy]

• [x] docs
• [x] resource
• [x] tests
• [x] supports open 2 db
• [x] supports db 2 db (DB2DB is automatic we cant use this resource as the provider is auto created)

Examples:

resource "databricks_provider" "dbprovider" {
  name = "sri-terraform-test-provider"
  comment = "made by terraform 2"
  authentication_type = "TOKEN"
  recipient_profile_str = jsonencode(
    {
        "shareCredentialsVersion":1,
        "bearerToken":"token",
        "endpoint":"endpoint",
        "expirationTime":"expiration-time"})
    }
  )
}```