Add more telemetry for ATA

[PranavSenthilnathan]

Currently ATA just fires an event with the list of packages to be installed, the success/failure and the typings installer version. Some more useful telemetry to gather would be per package success/failure, time for each package install, and the registry used (github vs. npm).

The event currently goes from typings installer to tsserver to whoever is listening to tsserver events (the editor). So adding the extra telemetry to the typings installer event seems like the best place (the other option is to calculate it in the tsserver based on the current event payload from the typing installer).