Telemetry

[mondus]

Adds telemetry to the software via the TelemetryDeck web service. This is an important feature for evidencing usage of the software. Without evidence of impact the software will not be able to apply for funding to support its continued development. After consultation with the RSE community the software will be opt-in to enable sharing of usage data. There are various way in which telemetry can be enabled and various environment variables which can be set. Please read the docs PR for a summary of these

Main features of this branch;

• Add telemetry by system call out to curl. This expects curl to exist in path but will fail (with warning) if it is not available or if the host could not be resolved. The warning can be removed in such cases by disabling telemetry.
• Support for cmake enabling of global telemetry. The default value is inherited from FLAMEGPU_SHARE_USAGE_STATISTICS. If the value is false a status message is given to users to encourage them to enable it to support the flame gpu software.
• Support for FLAMEGPU_SHARE_USAGE_STATISTICS global variables to enable telemetry. The default value of simulation telemetry is ON.

Note to devs: Set an environment variable FLAMEGPU_TELEMETRY_TEST_MODE from this point onward so any telemetry from us goes in test mode in TelemetryDeck

[Robadob]

• You haven't updated CI to set FLAMEGPU_SHARE_USAGE_STATISTICS when building release wheels.
• The spurious (empty) file examples/boids_bruteforce/-X should be deleted.

Think I've left all my comments now.

[ptheywood]

Just always print this info, there's no help output either so no one running the test suite will know this exists anyway, and it won't be triggered by CTest.

[ptheywood]

@Robadob

You haven't updated CI to set FLAMEGPU_SHARE_USAGE_STATISTICS when building release wheels.

It's on by default, so doesn't need explicitly setting (original was going to be opt-in, but Paul changed his mind)

[ptheywood]

Test suite results being phoned home have been removed for now, as swig needs to wrap the methods to make the call out, but they are intentionally hidden so users can't send them.

In the interest of rc-1, this has been removed for now to get other PRs merged / directory restructuring done, it may be re-added later if time allows, which will be an ABI break / switch back to a namespace + detail namespace + swig renaming + explicit not ignoring of that detail namespace...

[ptheywood]

Now approved after a discussion / couple of fixes w/ paul.

Will merge once CI passes.