use correct Linux link libraries for quat and vrpn

Source/DisplayCluster/DisplayCluster.Build.cs

@@ -129,12 +129,12 @@ public class DisplayCluster : ModuleRules
 		}
 		else if (ROTargetRules.Platform == UnrealTargetPlatform.Linux)
 		{
-			string LibrariesPath = Path.Combine(ThirdPartyPath, "VRPN", "Lib/Linux");
+			string LibrariesPath = Path.Combine(ThirdPartyPath, "Vrpn", "Lib/Linux");
 			
-			PublicAdditionalLibraries.Add(Path.Combine(LibrariesPath, "libvrpn.lib"));
-			PublicAdditionalLibraries.Add(Path.Combine(LibrariesPath, "libquat.lib"));
+			PublicAdditionalLibraries.Add(Path.Combine(LibrariesPath, "libvrpn.a"));
+			PublicAdditionalLibraries.Add(Path.Combine(LibrariesPath, "libquat.a"));
 			
-			PublicIncludePaths.Add(Path.Combine(ThirdPartyPath, "VRPN", "Include"));
+			PublicIncludePaths.Add(Path.Combine(ThirdPartyPath, "Vrpn", "Include"));
 			PublicIncludePaths.Add(Path.Combine(ThirdPartyPath, "X11", "Include")); // Necessary for hardware swap sync.
 			
 			return true;