Correct types for overriden services

[kburov-sc]

Fixing an issue where override's type wasn't correctly carried over onto the resulting container, e.g.

const value: number =  Container.providesValue("value", 1).providesValue("value", "two").get("value");

would, incorrectly, compile and cause issues at runtime. With the fix .get("value") return type is correctly resolved to string.

Also fixed provides* implementations that take containers as arguments.

[mikalai-snap]

Good catch! I've tested that change with Camera Kit and everything seems to be good!

[mikalai-snap]

nit: this syntax is unusual to me

Suggested change

	const partialContainer = new PartialContainer({
	value: Injectable("value", () => "three"),
	});
	const partialContainer = new PartialContainer({}).provides(Injectable("value", () => "three"));

[kburov-sc]

Updated, thanks!