Provide a convenience Texture API to handle invalid URLs more effectively

[bigtimebuddy]

This creates a convenience method for loading remote URLs. Fixes #6514. There are currently ways to error handle loads, and they suck and are confusing/verbose to use. This adds an alternative path for loading Texture by returning a Promise.

Option 1, manually load resource 👎

const texture = PIXI.Texture.from('http://path/to/wherever.png', {
  resourceOptions: { autoLoad: false }}
);
await texture.baseTexture.resource.load();

Option 2, subscribe to onError 👎

const texture = PIXI.Texture.from('http://path/to/wherever.png', {
  resourceOptions: { autoLoad: false }}
);
texture.baseTexture.resource.onError.add(() => {
  // handle error here
});

Options 3, This PR 👍

const texture = await PIXI.Texture.fromURL('http://path/to/wherever.png');

[codecov-commenter]

Codecov Report

Merging #6687 into dev will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               dev     #6687   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           15        15           
  Lines          671       671           
=========================================
  Hits           671       671           

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