Correct bool variable property drawer and add reference drawer

Author: krzysztof biernat

Editor/Reference/BoolReferenceVariablePropertyDrawer.cs

@@ -0,0 +1,10 @@
+using UnityEditor;
+
+namespace GTVariable.Editor
+{
+    [CustomPropertyDrawer(typeof(BoolReference))]
+    public class BoolReferenceVariablePropertyDrawer : ReferenceVariablePropertyDrawer
+    {
+
+    }
+}

Editor/Reference/BoolReferenceVariablePropertyDrawer.cs.meta

@@ -3,8 +3,8 @@
 namespace GTVariable.Editor
 {
 
-    [CustomPropertyDrawer(typeof(BoolReference))]
-    public class BoolReferenceVariablePropertyDrawer : ReferenceVariablePropertyDrawer
+    [CustomPropertyDrawer(typeof(BoolVariable))]
+    public class BoolVariablePropertyDrawer : VariablePropertyDrawer
     {
 
     }