Extract option handling as a Package

[Ailrun]

Is your refactoring related to a problem? Please describe.
Option handling might be redundant for executables in miniCUTE.

Describe the solution you'd like
Introducing packages that handle executable options

Additional context
The name for the directory including those packages can be "internal-packages" (or so)

[Ailrun]

Note: https://hackage.haskell.org/package/cmdargs

[Ailrun]

Or https://hackage.haskell.org/package/optparse-applicative