Implement TTY on Deno

[elringus]

Implement log.tty for Deno platform.

imgit/src/server/platform/deno.ts

Lines 71 to 72 in f5cda02

	log: {
	tty: () => {}, // TODO: Implement (https://github.com/elringus/imgit/issues/4)

https://deno.land/api?s=Deno.stdout