Add MijickPopupView

[FulcrumOne]

• Project Name: MijickPopupView
• Project URL: https://github.com/Mijick/PopupView
• Project Description: Popups framework that allows you to create any popup in no time.
• Why it should be added to awesome-swift: The simplest and most easily customizable popup creator ever.
• At least 15 stars (GitHub project)
• Support Swift 5
• Updated contents.json instead of README
• Lib is fully open sourced, written in Swift and not a wrapper over compiled lib
• Description does not say "written in Swift" or variant 🤓

[dkhamsing]

Thank you