Issue 51: Refactor ALCF tomography reconstruction flows

[davramov]

This pull request addresses issue #51: Refactor ALCF tomography reconstruction flows

• Refactored ALCF tomography implementation to use job_controller and transfer_controller methods.
• Updated pytest script to reflect these changes.
• Minor update to get_controller method in job_controller.py to ensure config is passed into the ALCFTomographyHPCController when it is selected

I tested these changes locally on the NIST sand dataset, and all of the steps appear to work properly. The alcf_recon_flow may require redeployment on flow-prd (the Prefect server) to reflect these changes.

[davramov]

Here is a preview of the MkDocs wiki I am putting together for this repo: https://davramov.github.io/splash_flows_globus/

I will look into adding the mkdocs build command into the github actions so it can be added with this PR. This command creates and updates a new branch called gh-pages which would host the wiki as a github page at https://als-computing.github.io/splash_flows_globus/