Make KeyEvent properties public

Sources/Shaft/Core/Keyboard.swift

@@ -7,9 +7,8 @@
 // found in the LICENSE file.
 
 public struct KeyEvent {
-
     /// The type of the key event.
-    let type: KeyEventType
+    public let type: KeyEventType
 
     /// Returns an object representing the physical location of this key.
     ///
@@ -48,7 +47,7 @@ public struct KeyEvent {
     ///  * [logicalKey] for the non-location specific key generated by this
     ///    event.
     ///  * [character] for the character generated by this keypress (if any).
-    let physicalKey: PhysicalKeyboardKey
+    public let physicalKey: PhysicalKeyboardKey
 
     /// Returns an object representing the logical key that was pressed.
     ///
@@ -62,11 +61,17 @@ public struct KeyEvent {
     /// [CupertinoTextField] widgets, since those automatically handle many of
     /// the complexities of managing keyboard input, like showing a soft
     /// keyboard or interacting with an input method editor (IME).
-    let logicalKey: LogicalKeyboardKey
+    public let logicalKey: LogicalKeyboardKey
 }
 
+/// Represents the type of a keyboard event.
 public enum KeyEventType {
+    /// The key was pressed down.
     case down
+
+    /// The key was released.
     case up
+
+    /// The key is being held down and repeating.
     case repeating
 }