Create Installing OSDFIR Infrastructure on GKE Docs

[wajihyassine]

Name and Version

charts/*

What is the problem this feature will solve?

Having a more clear walkthrough on setting up OSDFIR Infrastructure on GKE, which is currently done through a bash script (minus GRR which uses a separate install altogether).

What is the feature you are proposing to solve the problem?

The steps in the doc should walk the user from creating an example cluster, call out GKE autopilot not working with Turbinia and show an example of processing a GCP disk. This should remain as simple as possible to have the least amount of issues that might come up during cluster provisioning (e.g. like when a private cluster is created and forgot to add cloud NAT).

Also move GRR cloud install folder into extras/deploy/grr to not cause confusion on where to go to install the OSDFIR stack. In the docs, we will just have to point to the GRR installation as a separate step from the rest of OSDFIR Infrastructure until we get it more tightly integrated.

What alternatives have you considered?

No response