Add ability to disable segment telemetry globally

[joehoyle]

Description

The telemetry feature gives users the option to opt-in or out of having data sent back from their local or Altis Cloud environment to Vantage via a popup. It is a sub-module in Altis core called telemetry. This is per-user, it pops up per for each person.

We had a request to allow disabling telemetry globally via composer.json, current one workaround is to hook the get_user_meta call to disable it.

How to reproduce

• Create a new local server environment
• Login to /wp-admin
• You'll see the message to help us develop Altis, we would like to collect data on your usage of the software. This will help us build a better product for you. displayed

Acceptance Criteria

• The telemetry feature can be disabled via a composer.json configuration (the popup should no longer be visible)
• The profile telemtry opt-in option no longer appears
• This configuration is documented in the Altis docs

For Altis Team Use

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• Has the acceptance criteria been met?
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  • Or are manual tests documented (at least on this ticket)?
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[wisyhambolu]

@joehoyle can you please add some more description to this issue to help with refinement?

E.g.

• Where is the segment telemetry code currently located?
• How can this be tested?
• and anything else that would help someone dive into it

[wisyhambolu]

Hey team! Please add your planning poker estimate with Zenhub @jerico @mikelittle

[mikelittle]

Here is where it is documented internally https://github.com/humanmade/product-dev/blob/master/docs/tracking-and-telemetry.md