Create providers/decorators.js

[Araxeus]

This PR is mostly a refactor, but also add a new caching mechanic to:
songInfo.getImage() and notifications.[nativeImageToLogo() , saveImage()]

• Adds the following pseudo decorators: (which are actually high order functions)

  • singleton
  • debounce
  • cache
  • throttle
  • memoize
  • retry

• Implement the first 3 in a few plugins

you can find the decorators in providers/decorators.js

one day https://github.com/tc39/proposal-decorators will be available, and those pseudo decorators will be converted to actual decorators

TODO:
#1054 - 83abbdb (#1054) can use cache

[th-ch]

nit

Suggested change

	//without this function it would rewrite config 20 time when volume change by 20
	//without this function it would rewrite config 20 times when volume change by 20