Revert "NeinHaus' warning stripe icons"

This reverts commit a6a1ac9dc48b360236d7dfd6f569e6f7f8b9662a.
NeinHaus' warning stripe icons

Adds NeinHaus' warning stripe icons as a child of the warning stripe
object, when mapping, if at all possible, please use these instead of
the turfs that come with them already on it, as these will merge with
the turf at runtime, and are more flexible.