[Benchmark Script] Optimise

[Mariosyian]

Updates benchmark script to alleviate the user from remembering to hardcode their algorithm or language name in too many places. This should improve the user experience and reduce the risk of user error.

• Updates 💯
  • Update usage profiler conditions and score calculation.
  • Update java compilation steps to create and run a .jar file.
  • Update .gitignore to exclude .jar files from version control.
  • Remove ls method of filtering directories with the more conventional find command.
  • Add regex check for language-alphanumeric directory name structure.
  • Remove hard-coded languages/algorithms lists.
• Bugs 🐞
  • Update python black version due to ImportError (Refer to black Issues #2976).
• Miscellanous
  • Add new exit code.
  • Convert local variable names to lowercase and constants to uppercase.
  • Update some functions based on shellcheck conventions. Some as most of the shellcheck conventions seemed to break some of my things, and/or were annoying, or simply seemed meaningless (i.e. not add to performance, or safeguard against errors).

[Mariosyian]

LGTM 🎺🎉