Make code prettier

This updates ESLint and our shared eslint-config-openlayers to use Prettier.  Most formatting changes were automatically applied with this:

    npm run lint -- --fix

A few manual changes were required:

 * In `examples/offscreen-canvas.js`, the `//eslint-disable-line` comment needed to be moved to the appropriate line to disable the error about the `'worker-loader!./offscreen-canvas.worker.js'` import.
 * In `examples/webpack/exapmle-builder.js`, spaces could not be added after a couple `function`s for some reason.  While editing this, I reworked `ExampleBuilder` to be a class.
 * In `src/ol/format/WMSGetFeatureInfo.js`, the `// @ts-ignore` comment needed to be moved down one line so it applied to the `parsersNS` argument.

examples/mobile-full-screen.js

@@ -1,33 +1,33 @@
+import BingMaps from '../src/ol/source/BingMaps.js';
 import Geolocation from '../src/ol/Geolocation.js';
 import Map from '../src/ol/Map.js';
-import View from '../src/ol/View.js';
 import TileLayer from '../src/ol/layer/Tile.js';
-import BingMaps from '../src/ol/source/BingMaps.js';
-
+import View from '../src/ol/View.js';
 
 const view = new View({
   center: [0, 0],
-  zoom: 2
+  zoom: 2,
 });
 
 const map = new Map({
   layers: [
     new TileLayer({
       source: new BingMaps({
-        key: 'ApTJzdkyN1DdFKkRAE6QIDtzihNaf6IWJsT-nQ_2eMoO4PN__0Tzhl2-WgJtXFSp ',
-        imagerySet: 'RoadOnDemand'
-      })
-    })
+        key:
+          'ApTJzdkyN1DdFKkRAE6QIDtzihNaf6IWJsT-nQ_2eMoO4PN__0Tzhl2-WgJtXFSp ',
+        imagerySet: 'RoadOnDemand',
+      }),
+    }),
   ],
   target: 'map',
-  view: view
+  view: view,
 });
 
 const geolocation = new Geolocation({
   projection: view.getProjection(),
-  tracking: true
+  tracking: true,
 });
-geolocation.once('change:position', function() {
+geolocation.once('change:position', function () {
   view.setCenter(geolocation.getPosition());
   view.setResolution(2.388657133911758);
 });