RxSwift, RxCocoa, PromiseKit ... Open API Sample

1. Rx

   1. Subject
      1. PublishRelay
      2. BehaviorRelay
      3. Variable
      4. ReplaySubject
      5. BehaviorSubject
      6. PublishSubject
   2. Operator
      1. BufferWithTrigger
      2. FlatMap
      3. Async
      4. Share
      5. Combinelatest
      6. Sample
      7. Debounce
      8. Throttle

2. PromiseKit

   1. Pipe
   2. Pending
   3. Guarantee
   4. Async
   5. When
   6. Basic

3. TTTAttributedLabel+Rx