Add solutions in Centurion assembly and JCL

[rbergen]

Description

This PR adds solutions written in Centurion assembly and Centurion JCL. As such, they can be considered sister solutions to the Centurion JCL solution submitted earlier.

As was true for the CPL solution, credits for these solutions goes to ren14500.

Contributing requirements

• [x] I read the contribution guidelines in CONTRIBUTING.md.
• [x] I placed my solution in the correct solution folder.
• [x] I added a README.md with the right badge(s).
• [x] I added a Dockerfile that builds and runs my solution.
• [x] I selected drag-race as the target branch.
• [x] All code herein is licensed compatible with BSD-3.

[rbergen]

Merging this after out-of-band approval by ren14500, the actual author.