Dummy 13 smaller runners

You need to print arms and legs twice, but they don't need to be mirrored. Because of how I cut the runner, you get an extra stand adapter. I will be also adding the fem torso frame runner, but I haven't made it yet. The torso runner seems to split from the supports when pulling it from the bed. I might add a version that comes off in one piece just so it matches the rest, this version is the one from the original runner.