Fix bug in drawing DT simhits: the detid returned by the simhit is the wire ID, but the position is in the ref fame of the DTLayer. Fix DT simhits in RhoZ view, so that they are displayed aligned to 1D rechits. Draw rechits associated to segments also in the 3D view.
Merge pull request #1128 from namapane/VisMuonDT

Fireworks fixes -- Fix bug in drawing DT simhits + improvements