Implement ToVariant for bool.

Author: toasteater

gdnative-core/src/variant.rs

@@ -846,6 +846,16 @@ impl ToVariant for String {
     }
 }
 
+impl ToVariant for bool {
+    fn to_variant(&self) -> Variant {
+        Variant::from_bool(*self)
+    }
+
+    fn from_variant(variant: &Variant) -> Option<Self> {
+        variant.try_to_bool()
+    }
+}
+
 impl ToVariant for Variant {
     fn to_variant(&self) -> Variant {
         self.clone()