`writeFileData` does not check if parent directory exists

[martingrzzler]

This line failed because there was no entry for the parent directory.

Tarscape/Sources/Tarscape/KBTarUnarchiver.swift

Line 680 in ce02616

try Data().write(to: fileURL)

Adding this code before made it work:

let parentDirPath = fileURL.path.split(separator: "/").dropLast().joined(separator: "/")
if !FileManager.default.fileExists(atPath: parentDirPath) {
     try FileManager.default.createDirectory(atPath: parentDirPath, withIntermediateDirectories: true)
}