Merge pull request #4780 from SzymonHalucha/patch-1

Update Unity.gitignore to add new ignore patterns

Unity.gitignore

@@ -46,6 +46,7 @@ ExportedObj/
 *.csproj
 *.unityproj
 *.sln
+*.slnx
 *.suo
 *.tmp
 *.user
@@ -100,3 +101,6 @@ InitTestScene*.unity*
 
 # Auto-generated scenes by play mode tests
 /[Aa]ssets/[Ii]nit[Tt]est[Ss]cene*.unity*
+
+# Auto-generated cache in Assets folder
+/[Aa]ssets/[Ss]ceneDependencyCache*