Initialize renderer.nodes closes #92 (#94)

Signed-off-by: David Krause (enthus1ast) <[email protected]>
Co-authored-by: David Krause (enthus1ast) <[email protected]>

Author: enthus1ast

src/figuro/renderer/opengl/renderer.nim

@@ -34,6 +34,7 @@ proc newRenderer*(
   app.pixelScale = forcePixelScale
   let renderer = Renderer(window: window)
   startOpenGL(frame, window, openglVersion)
+  renderer.nodes = Renders()
   renderer.frame = frame
   renderer.ctx =
     newContext(atlasSize = atlasSize, pixelate = pixelate, pixelScale = app.pixelScale)