Add versions of dependencies used to FullReport().

Change-Id: I0a41e88e0669364d21ef86146f0b572f0f08ece5

internal/ceres/solver_utils.cc

diff --git a/internal/ceres/solver_utils.cc b/internal/ceres/solver_utils.cc
index ad22e96..8b3bae9 100644
--- a/internal/ceres/solver_utils.cc
+++ b/internal/ceres/solver_utils.cc
@@ -40,6 +40,8 @@
 std::string VersionString() {
   std::string value = std::string(CERES_VERSION_STRING);
 
+  value += "-eigen-(" + std::string(CERES_EIGEN_VERSION) + ")";
+
 #ifdef CERES_NO_LAPACK
   value += "-no_lapack";
 #else
@@ -47,11 +49,11 @@
 #endif
 
 #ifndef CERES_NO_SUITESPARSE
-  value += "-suitesparse";
+  value += "-suitesparse-(" + std::string(CERES_SUITESPARSE_VERSION) + ")";
 #endif
 
 #ifndef CERES_NO_CXSPARSE
-  value += "-cxsparse";
+  value += "-cxsparse-(" + std::string(CERES_CXSPARSE_VERSION) + ")";
 #endif
 
 #ifdef CERES_USE_EIGEN_SPARSE