[romi/xrp] Add Romi and XRP Vendordeps (#5644)

romiVendordep/src/dev/java/edu/wpi/first/wpilibj/romi/DevMain.java

@@ -0,0 +1,21 @@
+// Copyright (c) FIRST and other WPILib contributors.
+// Open Source Software; you can modify and/or share it under the terms of
+// the WPILib BSD license file in the root directory of this project.
+
+package edu.wpi.first.wpilibj.romi;
+
+import edu.wpi.first.hal.HALUtil;
+import edu.wpi.first.networktables.NetworkTablesJNI;
+import edu.wpi.first.util.RuntimeDetector;
+
+public final class DevMain {
+  /** Main entry point. */
+  public static void main(String[] args) {
+    System.out.println("Hello World!");
+    System.out.println(RuntimeDetector.getPlatformPath());
+    System.out.println(NetworkTablesJNI.now());
+    System.out.println(HALUtil.getHALRuntimeType());
+  }
+
+  private DevMain() {}
+}

romiVendordep/src/dev/native/cpp/main.cpp

@@ -0,0 +1,5 @@
+// Copyright (c) FIRST and other WPILib contributors.
+// Open Source Software; you can modify and/or share it under the terms of
+// the WPILib BSD license file in the root directory of this project.
+
+int main() {}