Usage telemetry

[dvsrepo]

Description

Record several usage metrics for the python client and API usage.

The registered event must be well defined and documented to users and could be disabled at any moment.

Tasks

• Add metrics documentation (how to disable, which metrics will be collected,...)
• Minimal event to register: /api/me, /api/datasets/.../bulk and API errors
• Define metrics component (encapsulate communication with segment.io, environment settings,...)
• Configure the segment.io sources and destinations

[frascuchon]

@dvsrepo You should start to work from this branch https://github.com/recognai/rubrix/tree/feat/usage-telemetry (I cannot create a draft PR since the branch has no changes)

[dvsrepo]

@frascuchon I've added a base doc. This needs to be completed with an exhaustive list of fields, methods and also the specif way of opting-in and out.