Introduce prePrint property to plugin

[fisker]

Plugins can have a prePrint property, which replaces current embed, and it works same as embed. Only difference we'll traverse AST and call prePrint.print of ALL plugins that matches the astFormat.

Before calling printer.print, we traverse AST, and collect all functions returned by prePrint.print, then call them in order, use the first doc these functions returns.

A plugin with prePrint looks like this.

export default {
	prePrint: {
		estree: {
			print(path, print, textToDoc, options) {
				if (isRustTemplate(path)) {
					return () => textToDoc(text, {parser: 'rust'})
				}
			},
		},
	},
};

I think this will partly solve #10803.

This still not allow multiple plugins format the same node.