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.

src/ol/transform.js

@@ -3,7 +3,6 @@
  */
 import {assert} from './asserts.js';
 
-
 /**
  * An array representing an affine 2d transformation for use with
  * {@link module:ol/transform} functions. The array has 6 elements.
@@ -11,7 +10,6 @@ import {assert} from './asserts.js';
  * @api
  */
 
-
 /**
  * Collection of affine 2d transformation functions. The functions work on an
  * array of 6 elements. The element order is compatible with the [SVGMatrix
@@ -24,14 +22,12 @@ import {assert} from './asserts.js';
  * ```
  */
 
-
 /**
  * @private
  * @type {Transform}
  */
 const tmp_ = new Array(6);
 
-
 /**
  * Create an identity transform.
  * @return {!Transform} Identity transform.
@@ -40,7 +36,6 @@ export function create() {
   return [1, 0, 0, 1, 0, 0];
 }
 
-
 /**
  * Resets the given transform to an identity transform.
  * @param {!Transform} transform Transform.
@@ -50,7 +45,6 @@ export function reset(transform) {
   return set(transform, 1, 0, 0, 1, 0, 0);
 }
 
-
 /**
  * Multiply the underlying matrices of two transforms and return the result in
  * the first transform.
@@ -103,7 +97,6 @@ export function set(transform, a, b, c, d, e, f) {
   return transform;
 }
 
-
 /**
  * Set transform on one matrix from another matrix.
  * @param {!Transform} transform1 Matrix to set transform to.
@@ -120,7 +113,6 @@ export function setFromArray(transform1, transform2) {
   return transform1;
 }
 
-
 /**
  * Transforms the given coordinate with the given transform returning the
  * resulting, transformed coordinate. The coordinate will be modified in-place.
@@ -138,7 +130,6 @@ export function apply(transform, coordinate) {
   return coordinate;
 }
 
-
 /**
  * Applies rotation to the given transform.
  * @param {!Transform} transform Transform.
@@ -151,7 +142,6 @@ export function rotate(transform, angle) {
   return multiply(transform, set(tmp_, cos, sin, -sin, cos, 0, 0));
 }
 
-
 /**
  * Applies scale to a given transform.
  * @param {!Transform} transform Transform.
@@ -185,7 +175,6 @@ export function translate(transform, dx, dy) {
   return multiply(transform, set(tmp_, 1, 0, 0, 1, dx, dy));
 }
 
-
 /**
  * Creates a composite transform given an initial translation, scale, rotation, and
  * final translation (in that order only, not commutative).
@@ -229,7 +218,6 @@ export function composeCssTransform(dx1, dy1, sx, sy, angle, dx2, dy2) {
   return toString(compose(create(), dx1, dy1, sx, sy, angle, dx2, dy2));
 }
 
-
 /**
  * Invert the given transform.
  * @param {!Transform} source The source transform to invert.