Logging/Analytics

[arvind]

We should log information about how people use Lyra, and strive to maintain as much privacy as possible. Things worth logging:

• Mark churn (added/deleted)
• Dropzones used (including which field type)
• Pipelines and transforms used (but do not track data import/values).
• When undo/redos occur (e.g., are there operations that frequently trigger errors).