Add CommandArguments#getOrThrow

[GliczDev]

Description

Even tho there is CommandArguments#getOptional, I think CommandArguments#getOrThrow-like (#getUncheckedOrThrow etc.) would be easier to use and much shorter than whatever this is: args.<String>getOptionalUnchecked("name").orElseThrow()

Expected code

basically CommandArguments#getOrThrow

Extra details

No response