Move the classes of the config items into the newly created config-items directory.

config-serializer/config-items/KeyAction.ts

@@ -0,0 +1,26 @@
+class KeyAction {
+
+    static fromJsObject(jsObject: any): KeyAction {
+        switch (jsObject.keyActionType) {
+            case KeystrokeAction.actionTypeString:
+                return new KeystrokeAction().fromJsObject(jsObject);
+            case KeyActionNone.actionTypeString:
+                return new KeyActionNone().fromJsObject(jsObject);
+            default:
+                throw 'Invalid KeyAction.keyActionType: "${jsObject.actionType}"';
+        }
+    }
+
+    static fromBinary(buffer: UhkBuffer): KeyAction {
+        let keyActionFirstByte = buffer.readUInt8();
+        buffer.backtrack();
+
+        if (KeystrokeAction.isScancodeValid(keyActionFirstByte)) {
+            return new KeystrokeAction().fromBinary(buffer);
+        } else if (keyActionFirstByte === KeyActionNone.keyActionNoneId) {
+            return new KeyActionNone().fromBinary(buffer);
+        } else {
+            throw 'Invalid KeyAction first byte "${keyActionFirstByte}"';
+        }
+    }
+}