[docs] Add romi and xrp to docs build (#7045)

romiVendordep/src/main/native/include/frc/romi/OnBoardIO.h

@@ -12,6 +12,11 @@
 
 namespace frc {
 
+/**
+ * @ingroup romi_api
+ * @{
+ */
+
 /**
  * This class represents the onboard IO of the Romi
  * reference robot. This includes the pushbuttons and
@@ -24,7 +29,8 @@ namespace frc {
  */
 class OnBoardIO {
  public:
-  enum ChannelMode { INPUT, OUTPUT };
+  /** Mode for Romi onboard IO */
+  enum ChannelMode { /** Input */ INPUT, /** Output */ OUTPUT };
   OnBoardIO(OnBoardIO::ChannelMode dio1, OnBoardIO::ChannelMode dio2);
 
   static constexpr auto kMessageInterval = 1_s;
@@ -73,4 +79,6 @@ class OnBoardIO {
   std::unique_ptr<frc::DigitalOutput> m_redLed;
 };
 
+/** @} */
+
 }  // namespace frc

romiVendordep/src/main/native/include/frc/romi/RomiGyro.h

@@ -8,6 +8,11 @@
 
 namespace frc {
 
+/**
+ * @ingroup romi_api
+ * @{
+ */
+
 /**
  * Use a rate gyro to return the robots heading relative to a starting position.
  *
@@ -88,4 +93,6 @@ class RomiGyro {
   double m_angleZOffset = 0;
 };
 
+/** @} */
+
 }  // namespace frc

romiVendordep/src/main/native/include/frc/romi/RomiMotor.h

@@ -8,6 +8,11 @@
 
 namespace frc {
 
+/**
+ * @defgroup romi_api Romi Hardware API
+ * @{
+ */
+
 /**
  * RomiMotor
  *
@@ -27,4 +32,6 @@ class RomiMotor : public PWMMotorController {
   RomiMotor& operator=(RomiMotor&&) = default;
 };
 
+/** @} */
+
 }  // namespace frc