feat: add compy.graphics with bezier polygonization and shape rendering (#12)

* feat: add compy.graphics with bezier polygonization and shape rendering
* review: weak caches, shape2d under compy.graphics.shape2d

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Co-authored-by: Vadym <vadym@MacBook-Pro-Vadym.local>

Author: Vadim1987

src/controller/consoleController.lua

@@ -295,7 +295,9 @@ end
 
 -- Set up audio table
 local compy_audio = require("util.audio")
-local compy_graphics = {}
+local compy_graphics = {
+  shape2d = require("util.graphics.shape2d")
+}
 local get_compy_terminal = function(terminal)
   return {
     --- @param x number