change structure of MWDC parameter. Use TParameterLoader instead of...

change structure of MWDC parameter. Use TParameterLoader instead of TMWDCParameterLoader and geometry.yaml must be modified.

geometry.yaml must be modified like this:

<pre>
position: [0.,0.,-868.0]
angle: 0.
turned: 0
plane_config: prm/mwdc/config/type_b.yaml
</pre>

type_b.yaml has following format like this:

<pre>
- x:
    z:        9.
    nWire:   24
    cellSize: &cell 9.
    angle:    0.
    center: 12.5
- u:
    z:        0.
    nWire:   24
    cellSize: *cell
    angle:   30.
    center: 12.5
- v:
    z:       -9.
    nWire:   16
    cellSize: *cell
    angle:   -45.
    center:  8.5
</pre>