Tag props for selection in Railway Replacer prop UI.

Railway_PropTagger.cs

var styleName = "Sugondese"; // Name which will be visible in the UI
var type = "cat1n"; // The type of prop:
// cat1n 	single normal catenary
// cat1e 	single end-catenary
// cat1t 	single tunnel catenary
// cat2n 	double normal catenary
// cat2e 	double end-catenary
// cat2t 	double tunnel catenary
// sigr 	right signal
// sigl 	left signal
// barr1 	short barrier
// barr2 	medium barrier
// barr3 	long barrier
// barr4 	very long barrier
// buff 	buffer
// cat4n        quad normal catenary
// cat4e        quad end-catenary
// cat4t        quad tunnel catenary
// gant1        single gantry
// gant2        double gantry
// gant4        quad gantry
var asset = ToolsModifierControl.toolController.m_editPrefabInfo as PropInfo;
asset.m_material.name = "r69rwp-"+type+"#"+styleName+"#";