Draft: FPGATrackSim: Complete the data prep algorithm and cleanup

Includes cleanup to output the DP alg, rename some tests, convert our DP alg objects and fix a few small things such as fixing eta ranges and renaming files to better match convention and what makes sense. Tagging @brosser @piazza @imaznas and @tbold. This started from Ben's MR here, which should go first, I assume: !74086 (merged)