added reset to TermWriteable

src/kernel/ui/TermBuffer.hx

@@ -166,4 +166,11 @@ class TermBuffer implements TermWriteable {
 	public function isColor():Bool {
 		throw new haxe.exceptions.NotImplementedException();
 	}
+
+	public function reset() {
+		this.setBackgroundColor(Black);
+		this.setTextColor(White);
+		this.clear();
+		this.setCursorPos(0,0);
+	}
 }