Add star/polygon gizmos and refactor the separate shape drawing tools into a unified Shape tool (#2683)

* no trait ,not to fix line

* add hints

* line modification even when other shapes are selected

* added transform and anchor overlays

* removed old code

* fixed transform added hints need to fix modifier keys use

* refactored select-tool

* add point-handle-gizmo

* fix rotate bug

* implement angle snapping gizmo , fix overlay and refactor the code

* implement snapping for point-handle gizmo and implement no of point gizmo need to refactor

* implemented the gizmo for polygon, added tests , brackets to increase sides

* formatting-fix

* small nit-picks

* Make it compile

* Code review

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

Cargo.lock

@@ -2264,6 +2264,7 @@ dependencies = [
  "graphite-proc-macros",
  "interpreted-executor",
  "js-sys",
+ "kurbo",
  "log",
  "num_enum",
  "once_cell",