Added:
- regression-extrapolate-forward
- regression-extrapolate-backward
- regression-max-degree
- regression-min-degree
- regression-moving-type
- regression-period
- regression-force-intercept
- regression-intercept-value

Not all of these are yet filled as they are not yet implemented.

Change-Id: I7ac39c0df5b8b7fb7be6b32d301e33a7f49f2960