Swift PM support

• Added Package.swift
• Bump up minimum deployment target to iOS 11

Dark Mode Support

Updates

• Dark mode support implemented
• Fixed #5

More details in PR: #7

Support empty array of alert actions

Updates

• Hide action sequence view if actions array is empty
• Enhancement for #5

More details in PR: #6

Added `shouldDismissAutomatically` flag

Updates

• Added shouldDismissAutomatically flag
• Added ability to add actions after view controller's creation (but before view is loaded)
• Updated readme
• Fixed #2

More details: #4

Added ability to disable actions

More details: #3