Issue Description:

Refactoring that outputs a "best-effort" member-wise init for a class or struct.

Local refactoring, cursor based

Availability: Cursor on class or struct name

Process: For every stored property create a argument with the same name.

class Derived: Base {{{ }}

{{ let property1: Type1}}{{ }}

{{ let property2: Type2?}}

{{}}}

This would generate:

init(property1: Type1, property2: Type2?) {{{ }}

{{ self.property1 = property1}}

{{ self.property2 = property2}}

{{ super.init()}}

{{}}}

Note: This code is "best-effort" as it may or may not compile depending on the requirements of Base initialization.

public struct Struct {{{ }}

{{ let property1: Type1}}{{ }}

{{ let property2: Type2}}

{{}}}

Would create:

public init(property1: Type1, property2: Type2) {{{ }}

{{ self.property1 = property1}}

{{ self.property2 = property2}}

{{}}}