helix: Add match operator (#34060)

This is an implementation of matching like "m i (", as well as "] (" and
"[ (" in `helix_mode` with a few supported objects and a basis for more.

Release Notes:

- Added helix operators for selecting text objects

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

crates/vim/src/normal.rs

@@ -495,10 +495,19 @@ impl Vim {
                     self.replace_with_register_object(object, around, window, cx)
                 }
                 Some(Operator::Exchange) => self.exchange_object(object, around, window, cx),
+                Some(Operator::HelixMatch) => {
+                    self.select_current_object(object, around, window, cx)
+                }
                 _ => {
                     // Can't do anything for namespace operators. Ignoring
                 }
             },
+            Some(Operator::HelixNext { around }) => {
+                self.select_next_object(object, around, window, cx);
+            }
+            Some(Operator::HelixPrevious { around }) => {
+                self.select_previous_object(object, around, window, cx);
+            }
             Some(Operator::DeleteSurrounds) => {
                 waiting_operator = Some(Operator::DeleteSurrounds);
             }