Merge pull request #2398 from borglab/feature/navstate_doc

NavState docs

Author: dellaert

examples/AbcEquivariantFilterExample.cpp

@@ -17,10 +17,24 @@
  * @author Frank Dellaert
  * @date 2025
  */
+
 #include <gtsam/slam/dataset.h>
 #include <gtsam_unstable/geometry/ABC.h>
 #include <gtsam_unstable/geometry/ABCEquivariantFilter.h>
 
+#include <array>
+#include <chrono>
+#include <cmath>
+#include <cstddef>
+#include <exception>
+#include <fstream>
+#include <iostream>
+#include <numeric>
+#include <sstream>
+#include <stdexcept>
+#include <string>
+#include <vector>
+
 // Use namespace for convenience
 using namespace gtsam;
 constexpr size_t n = 1;  // Number of calibration states