Find Alternative Way to Pass Parameters

The way a user currently passes parameters to the SQL query included in their input binding is via the [`Parameters`](https://github.com/Azure/azure-functions-sql-extension/blob/dev/src/SqlBinding/SqlAttribute.cs#L61) parameter of the SqlAttribute. This isn't a great way to do it, for one because it doesn't allow for parameter names or values that include commas and equal signs, and also because it's not a very intuitive experience for the user. Perhaps we can look into how CosmosDB does parameters - sounds like they implemented their own version of "auto resolve"?