Pyallel

- a4125b6 fix: improve command failed error message
- c6f2e35 docs: update README

- e5b1d22 build: update build_all.sh to work again
- 8cc9eb3 build: use double dash in pyallel test command
- 052bec0 docs: clarify what the double dash symbol does
- 3d32a03 build: use most recent version of pyallel to test pyallel
- 8a395fa build: use PYTHONPATH when printing pyallel version
- e462fab build: print version of pyallel used in test workflow
- 585510d feat!: support passing commands without wrapping in quotes

- 079ee7b fix: bug where process groups potentially didn't contain processes

- 4c794af fix: possible index out of bounds error in InteractiveConsolePrinter

- 3f2a811 perf: only move cursor to lines that need to be updated

- 9fb073e refactor: move printer related functions into ConsolePrinter class
- 13d8176 fix: possible race condition when printing output
- 56f51fa refactor: split printer class into multiple classes (6)