Added speed functionality for scada
Conveyor position logic fixed
Merge branch 'dev/scada' of https://github.com/dkaynarc/tmc into dev/scada

Conflicts:
	src/cluster/Tmc/Common/IScada.cs
	src/cluster/Tmc/ScadaApp/MainForm.Designer.cs
	src/cluster/Tmc/ScadaCore/ScadaEngine.cs
added speed methods