Fixes CrossingGenerator to generate NWM x STR crossings.

Author: TarkusSC4

src/main/scala/module/CrossingGenerator.scala

@@ -11,7 +11,7 @@ object CrossingGenerator {
       minor <- Network.values.iterator
       if minor != Subway && !isHrw(minor) && (main.isRhw || minor.isRhw ||
          (main.isNwm && (minor.isRhw || minor.isNwm || minor.isViaduct || minor.base.isEmpty || GlrNetworks.contains(minor))) ||
-         (main.isNwm && isSingleTile(main) && main.height == 0 && (minor == L1Dtr || minor == L2Dtr)) ||
+         (main.isNwm && isSingleTile(main) && main.height == 0 && (minor == L1Dtr || minor == L2Dtr || minor == Str)) ||
          (main.isViaduct && (minor.isNwm || minor.isRhw || minor.base.isEmpty) && minor != Groundhighway) ||
          GlrNetworks.contains(main) && (minor.isRhw || minor.isNwm /*|| minor == main*/)
          ) && intersectionAllowed(main, minor)