Optionally allow using fetchEvent to handle wasi:http/incomingHandler@0.2.0#handle

[karthik2804]

As the title suggests, it would optionally use the fetchEvent that Starlingmonkey provides to handle incoming wasi-http requests. The upside to this would be to write apps that target a more idiomatic API which developers will be familiar with.

ComponentizeJS/crates/spidermonkey-embedding-splicer/src/splice.rs

Lines 56 to 63 in 63e3453

	if let Ok(serve) = module
	.exports
	.get_func("wasi:http/incoming-handler@0.2.0#handle")
	{
	let expt = module.exports.get_exported_func(serve).unwrap();
	module.exports.delete(expt.id());
	module.funcs.delete(serve);
	}