Snippets by type in Usage Ping

Problem to Solve

There are currently two types of Snippets in GitLab - personal and project. Currently our usage data reports a total number of snippets across the application, but it would be useful to get more granular details on if the snippets are project or personal.

Additional Details

This will also require an additional MR to the version.gitlab.com project so that it can properly receive the data.

Proposal

Additional reporting should be added to report the count of Snippets of each type in addition to the aggregate count that's already reported.