Currently when building a Geo index on a collection with existing data the build will fail if documents being indexed contain invalid geometries.

This means that the only option to building the index is to to brute force the index build and resolving the errors that are picked up after each failed build. This can be a costly and time consuming operation especially when a large amount of data is involved.

We should provide some mechanism to allow users to validate geometries without waiting for index builds to fail.