Adds few observer macros to avoid calling observer function too often

import { observerOnce, observerDebounce, observerThrottle } from 'ember-observer-macros';

Calls observer function once in run loop

nameChanged: observerOnce('propName1', 'propName2', function() {})

Debounces observer function

nameChanged: observerDebounce('propName1', 'propName2', function() {}, 200)

Throttles observer function

nameChanged: observerThrottle('propName1', 'propName2', function() {}, 200)

• ember install ember-observer-macros