CLI command history fixes + build cmds to root

[connor-hanson]

This PR contains several updates, each documented by their respective commit

1. Move commands & dockerfile to root
   • Motivation: Makefiles were distributed and difficult to follow. Convention is for makefiles to live at the project root. Makefile required updates to accommodate local cli building/cleaning with make build && make clean
   • Changes:
   1. Flatten Makefiles to root level
   2. Move Dockerfile out of build/ directory. Existing build directory conflicts with make build, causing it to think the program had already successfully been built, when it wasn't.
   • Testing
   1. make build && make clean create / destroy executable + build directory
   2. make docker-build runs without error
   3. make docker-run runs until auth refused, but runs command correctly (I don't run any servers on docker, so this is expected that auth fails)

docker run -it --rm \
      -v /Users/connorhanson/workspace/rcon-cli/rcon-local.yaml:/rcon.yaml \
      outdead/rcon ./rcon -c /rcon.yaml  
cli: auth: rcon: dial tcp 127.0.0.1:27015: connect: connection refused

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2. Add MacOs homebrew tap

• Motivation: Homebrew is a standard macos cli installation tool. I'd like to run this command from my cli via homebrew
• Changes:
  1. Build macos release binaries to dist/
  2. Update docker-release to not publish on each PR
• Testing: None. Unsure how to test homebrew releases/github workflows. Should be low impact if not working.

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3. Allow escaped command shortcuts to cli executor

• Motivation: For mod development using rcon, it is useful to be able to rapidly repeat commands previously used. Current implementation does not handle shortcuts such as using command history
• Changes:
  1. Update from bufio to cli library which escapes these special characters for us
• Testing: Manual tests, updated unit tests, removed obsolete unit test