Move sub-namespace typedefs to typedefs.js

Here too there is one problem case.

src/ol/render/canvas/canvas.js

@@ -1,31 +1,6 @@
 goog.provide('ol.render.canvas');
 
 
-/**
- * @typedef {{fillStyle: ol.ColorLike}}
- */
-ol.render.canvas.FillState;
-
-
-/**
- * @typedef {{lineCap: string,
- *            lineDash: Array.<number>,
- *            lineJoin: string,
- *            lineWidth: number,
- *            miterLimit: number,
- *            strokeStyle: string}}
- */
-ol.render.canvas.StrokeState;
-
-
-/**
- * @typedef {{font: string,
- *            textAlign: string,
- *            textBaseline: string}}
- */
-ol.render.canvas.TextState;
-
-
 /**
  * @const
  * @type {string}