feature: hooks parameters

[arnaudrocca]

Summary

This PR adds news parameters to Fragment's hooks in order to allow developers to generate and save custom files while matching Fragment sketches exporting logic.

Example

This code would result in saving a sketch.svg file after the capture of sketch.png, both in the same directory using the same filename pattern.

import { saveFiles } from '@fragment/utils/file.utils';

onAfterCapture(({ name, exportDir }) => {
	const data = draw(); // custom code to generate data (for example: SVG code using [d3-path](https://d3js.org/d3-path))

	const files = [
		{
			filename: `${name}.svg`,
			exportDir,
			data: data
		}
	];

	saveFiles(files);
});