Support Fastlane and integrating to exist CI/CD

[NghiaTranUIT]

It takes tons of time when distributing app manually. Here is what I do

1. Increase build number and build version
2. Create git tag
3. Archive the build
4. Sign with private key (Sparkle app)
5. Zip with format: Artify_{version_number}.zip
6. Upload to my /artify Dropbox folder and copy the share link (?dl=1)
7. Update appcast.xml
8. Create new Github Release and copy Change Log and submit the zip build.

It's so high-consume task ever.

Acceptance Criteria

• Integrate Fastlane to do it automatically
• Integrate to our Travis

Ref:

https://docs.fastlane.tools/actions