add reorient blocks button to terrain task
add reorient blocks button to terrain task

this reorients blocks so that the iris region seeds will be useful

openhumanoids/oh-distro,openhumanoids/oh-distro,openhumanoids/oh-distro,openhumanoids/oh-distro,openhumanoids/oh-distro,openhumanoids/oh-distro,openhumanoids/oh-distro,openhumanoids/oh-distro