- argumentWaitingForValue was never reset after the value had been retrieved
- made it so the ArgumentsParser constructor can accept const char**
- correct usage of substr() and actually use the correct position in the first place
- fix a typo where I tried to dereference `this` with `-` instead of `->`
test/nbt_helpers: add a headline to output
Build system: remove comma from array that I added bc I thought it was correct sytax, it wasn't
lib/cli: change argument order of PositionalArgument constructor to fit in with Flag and UnpositionalArgument
lib/cli: properly define what is private and what is public in the ArgumentsParser class
This should be all functionality that is needed for now.
The next step is building unit tests to check that everything works correctly.
Who am I kidding? There will most certainly be bugs in there given that this
code has been typed out without ever being run.