UIKit transforms and Swift5.2 fixes

Added:

• New transforms plugin with very simple mappings between UIKit and Android widgets
• #116: Swift 5.2 implicit return fixes

Enum improvements

Added several minor improvements on enums:

• #112: Removed redundant . in switch expressions
• #113: Fixed wrong addition of in in switch expressions
• #114: Added is to enums when using sealed classes with tuples
• Removed Equatable conformance from sealed classes enums

Equatable and other fixes

Maintenance release including the following fixes:
#101: Fixed type inheritance in structs
#110: Removed Equatable type inheritance in structs
#108: Fixed equatable enums
Fixed wrong listOf conversion

Swift5 and other improvements

Updated to Swift5 and Xcode 12, together with the following:
#48: Unicode support on strings
#104: Transformed private setter properties
#82: Fixed bug on guard condition inversion

Enum improvements, dark mode and other bug fixes

Improvements and resolved issues:

• #85: Dark theme for App
• #91: Force cast conversion
• #94: Improved enums with rawValue init
• #90: Override methods remove default parameters
• #68: List and map conversion improvements

Swift update to 4.2 and other improvements

Improvements and resolved issues:

• Changed project structure to allow easier dependency update
• Updated code to use Swift 4.2 and Xcode 10
• #76: Keep code comments
• Other minor updates and fixes

Better properties, lambdas and bug fixes

Improvements and resolved issues:

• #47 Added support for lazy properties
• #22 Added support for didSet/willSet properties
• #29 Added support for varargs
• #69 Improved return statements in lambda expressions
• #70 Fixed issue with computed properties in structs

Code optimizations, bug fixes and small improvements

Resolved issues and improvements:

• #26 Removed optional chaining in lambdas
• #20 Optimized body returns to single line
• #53 Added inheritance support to enums
• #60 Fixed position of generics in function definitions
• #41 Added invoke to optional lambdas

Bug fixes and minor improvements

Resolved issues:

• #14 Add support for fatalError()
• #25 Optional chaining in Kotlin requires optional checks in all expressions
• #56 Switch cases with multiple lines not properly indented by {}
• #55 Remove underscore assignments

Sealed classes, guard statements and other improvements

Resolved issues:

• #49: Add feedback error messages when Swift is incorrect into SwiftKotlin App
• #46: Typing double quotes into SwiftKotlin App becomes curly quotes
• #45: Allow Semicolons in Swift Code
• #32: Translate complex enums to Sealed classes
• #21: Optimize guard unwrapping expressions
• #28 and #37: Removed unnecessary annotations in Kotlin