add: 오픈소스 라이브러리 추가

[hyun99999]

👀 이슈 (issue)

설정 > 오픈 소스 라이브러리 탭 추가

🚀 to-do

• [x] lottie https://github.com/airbnb/lottie-ios
• [x] Then https://github.com/devxoul/Then
• [x] SnapKit https://github.com/SnapKit/SnapKit
• [x] RxSwift https://github.com/ReactiveX/RxSwift
• [x] FlexLayout https://github.com/layoutBox/FlexLayout
• [x] PinLayout https://github.com/layoutBox/PinLayout
• [x] RxGesture https://github.com/RxSwiftCommunity/RxGesture
• [x] YPImagePicker https://github.com/Yummypets/YPImagePicker
• [x] Firebase https://github.com/firebase/firebase-ios-sdk

[hyun99999]

pod 'Moya' pod 'SkeletonView' pod 'SwiftLint' pod 'VerticalCardSwiper' pod 'KakaoSDKCommon' pod 'KakaoSDKUser' pod 'KakaoSDKAuth' pod 'IQKeyboardManagerSwift' pod 'Kingfisher' pod 'NVActivityIndicatorView' pod 'lottie-ios' pod 'Then' pod 'SnapKit' pod 'RxSwift' pod 'RxCocoa' pod 'Moya/RxSwift' pod 'FlexLayout' pod 'PinLayout' pod 'RxGesture' pod 'YPImagePicker' pod 'Firebase/Analytics' pod 'Firebase/DynamicLinks' pod 'Firebase/Messaging'