Run styles, bloom and sharpen through a Cesium effects port

The effects port puts each style Core defines on its own post-process
stage, takes the scene's bloom stage and adds a sharpen stage, with the
mappings the application uses today. An animated style holds frames and
advances its time uniform while it draws. A replaced style keeps drawing
until its intensity is 0, so Core can crossfade; the contract, the stub
and a new conformance check say so. The conformance renderer has the
port; the application renderer does not yet.

scripts/package-boundaries.json

@@ -2736,6 +2736,7 @@
       "src/render/rendererOf.js",
       "src/render/cesium/ports.js",
       "src/render/cesium/credits.js",
+      "src/render/cesium/effects.js",
       "src/render/cesium/common.js",
       "src/render/cesium/camera.js",
       "src/render/cesium/follow.js",