Add held DynamicMacros keys to the Keyboard HID report

DynamicMacros was missing a necessary `beforeReportingState()` handler that is
responsible for adding keys held by an active macro to the HID report.  This
handler is identical to the one used by the Macros plugin for the same purpose.

Signed-off-by: Michael Richters <gedankenexperimenter@gmail.com>

plugins/Kaleidoscope-DynamicMacros/src/kaleidoscope/plugin/DynamicMacros.cpp

@@ -240,6 +240,17 @@ EventHandlerResult DynamicMacros::onKeyEvent(KeyEvent &event) {
   return EventHandlerResult::EVENT_CONSUMED;
 }
 
+EventHandlerResult DynamicMacros::beforeReportingState(const KeyEvent &event) {
+  // Here we add keycodes to the HID report for keys held in a macro sequence.
+  // This is necessary because Kaleidoscope doesn't know about the supplemental
+  // `active_macro_keys_[]` array.
+  for (Key key : active_macro_keys_) {
+    if (key != Key_NoKey)
+      Runtime.addToReport(key);
+  }
+  return EventHandlerResult::OK;
+}
+
 EventHandlerResult DynamicMacros::onNameQuery() {
   return ::Focus.sendName(F("DynamicMacros"));
 }

plugins/Kaleidoscope-DynamicMacros/src/kaleidoscope/plugin/DynamicMacros.h

@@ -39,6 +39,7 @@ class DynamicMacros : public kaleidoscope::Plugin {
  public:
   EventHandlerResult onNameQuery();
   EventHandlerResult onKeyEvent(KeyEvent &event);
+  EventHandlerResult beforeReportingState(const KeyEvent &event);
   EventHandlerResult onFocusEvent(const char *command);
 
   static void reserve_storage(uint16_t size);