Raise rear hydraulics v2.0

Huhu,
zzz_setBackLinkage.zip this ensures that the lower links of the rear hydraulics are raised when you attach a trailer via ball head. Connects additionally a PTO, the lower link of the rear hydraulics are degraded. Thus, since nothing can get in the way: whistling: (cornering ..).

Hotfix 1.1:
The rear linkage is now only lowered when the trailer is uncoupled with Kugelkopfanhängung from the tractor. Before that happened even if, for example forward still had a weight, and the abkoppelte first.

Declaration on the xml entry:
In the modDesc the zzz_setBackLinkage.zip or the Fzg.xml the stretcher can be adjusted a few things .. In addition one examined in the modDesc following line: (This line can you also add in Fzg.xml the tractor to specifically for this Tractor adjust the values)
<setBackLinkageUp maxRot="25" rotSpeed="0.45" doDismantleBackLinkageIfPTOIsNeeded="true" />

First day:
maxRot="25"
This value indicates how far the Herckhydraulik is lifted.

Second day:
rotSpeed="0.45"
This value indicates how fast the rear hydraulics is raised and lowered.

Third day:
doDismantleBackLinkageIfPTOIsNeeded="true"
Here it is determined whether the lower links of the rear hydraulics to degrade when connecting a PTO with the tractor. If they do not degrade, then fill in the 'true' set to 'false'.