1.8.0

• introduce kmmresult-test, featuring
  • result should succeed
  • result shouldNot succeed
  • result shouldSucceedWith expectedValue
  • result.shouldSucceed() returning the contained value
• remove Arrow dependency and import arrow's list of Fatal exceptions directly into our code
• Introduce Result.nonFatalOrThrow to mimic KmmResult's non-fatal-only behaviour, but without the object instantiation overhead
• Introduce carchingUnwrapped, which mimics KmmResult's non-fatal-only behaviour, but without the object instantiation overhead