Boolean Orderparameters to showtree.py

Added boolean orderparameters to showtree.py.

showtree.py now supports the following arguments now:
- show also rejected trajectories
```
--rejected
```
- the the values of an order parameter or an idea in the snapshot boxes
```
--show [orderparameter/configuration/snapshot/momentum]
```

- Create a pdf out of the svg
```
--pdf
```

- Add color of a boolean order parameter the the border of a snapshot box
```
--state [orderparameter] [color]
```

- Convert the shown value to degrees
```
--show-degree
```

We should at some point really clean this up more. The code is still very patched together