Delphi Make Dictionary Static and Dont initialize Array.

[glenkleidon]

Description

Changed the Dictionary to a static object.

As pointed out by Dave Plummer in the most recent (Delphi Vs Ada)[https://www.youtube.com/watch?v=tQtFdsEcK_s&t=31s] video, this original implementation creates the History Dictionary dynamically each time when it should be static. This means it does not need to create or destroy the history as a private member.

I also eliminated the need to re-initialize the FBitarray with TRUE which was a significant bottleneck.

Contributing requirements

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