Record canvas snapshots N times per second (#859)

* Only record canvas when recordCanvas is true

* All should be compiled first

Makes recompiling+debugging a lot faster

* Add support for compiling web workes

Replaces @rollup/plugin-typescript for rollup-plugin-typescript2 as the former is incompatible with rollup-plugin-web-worker-loader

* Update yarn.lock

* Upgrade to typescript 4.5.5

* add support for replay of ImageBitmap in 2d canvas

* Snapshot canvases in a web-worker on FPS basis

* Fix performance of canvas recording and playback

* Wait for all images to be preloaded before checking results

* flatten base64 strings, as encoding isn't consistent

* Cleanup

* Add serializing to 2d canvases as well

* Disable blob serialize test

We don't have any code for it yet

* Upgrade @rollup/plugin-commonjs to 21.0.2

Fixes
https://linguinecode.com/post/import-export-appear-at-the-top-level

* Move canvas recording options to `sampling`

Based on: https://github.com/rrweb-io/rrweb/pull/859#discussion_r846582146

packages/rrweb/package.json

@@ -41,14 +41,14 @@
   },
   "homepage": "https://github.com/rrweb-io/rrweb#readme",
   "devDependencies": {
-    "@rollup/plugin-node-resolve": "^7.0.0",
-    "@rollup/plugin-typescript": "^8.3.1",
+    "@rollup/plugin-node-resolve": "^13.1.3",
     "@types/chai": "^4.1.6",
     "@types/inquirer": "0.0.43",
     "@types/jest": "^27.4.1",
     "@types/jest-image-snapshot": "^4.3.1",
     "@types/jsdom": "^16.2.14",
     "@types/node": "^17.0.21",
+    "@types/offscreencanvas": "^2019.6.4",
     "@types/prettier": "^2.3.2",
     "@types/puppeteer": "^5.4.4",
     "cross-env": "^5.2.0",
@@ -63,10 +63,12 @@
     "jsdom-global": "^3.0.2",
     "prettier": "2.2.1",
     "puppeteer": "^9.1.1",
-    "rollup": "^2.45.2",
+    "rollup": "^2.68.0",
     "rollup-plugin-postcss": "^3.1.1",
-    "rollup-plugin-rename-node-modules": "^1.1.0",
+    "rollup-plugin-rename-node-modules": "^1.3.1",
     "rollup-plugin-terser": "^7.0.2",
+    "rollup-plugin-typescript2": "^0.31.2",
+    "rollup-plugin-web-worker-loader": "^1.6.1",
     "ts-jest": "^27.1.3",
     "ts-node": "^10.7.0",
     "tslib": "^2.3.1",