Add tooling and documentation to automate the setup of a cdsp Mongo Atlas cloud environment

[chrizmc]

Add tooling and documentation to automate the setup of the cdsp Mongo Atlas environment with Playground specific a) configuration and b) data

For all the user specific things like api tokens etc a cdsl specific short documentation would be very helpful and would make life a lot easier to set up everything and get it running.

@93arnaldo What do you think?

[slawr]

Arnaldo has left MongoDB. Assigned issue to Christian temporarily until it becomes clear who in MongoDB will take this up.
@claireqiu and @humza-akhtar for reference.

[slawr]

There has been no public activity on this issue for several months. Moving it back to the Backlog