Draft: Resolve "Implementation of new nodes creation"

Closes #454, #318, #364, #449, #381, #376, #208, #485

demos/hello_wolf/hello_wolf_autoconf.cpp

@@ -224,7 +224,7 @@ int main()
 
     // SOLVE with exact initial guess
     WOLF_INFO("======== SOLVE PROBLEM WITH EXACT PRIORS =======")
-    std::string report = ceres->solve(ReportVerbosity::FULL);
+    std::string report = ceres->solve(SolverManager::ReportVerbosity::FULL);
     WOLF_INFO(report);  // should show a very low iteration number (possibly 1)
     problem->print(1, 0, 1, 0);
 
@@ -235,13 +235,13 @@ int main()
 
     // SOLVE again
     WOLF_INFO("======== SOLVE PROBLEM WITH PERTURBED PRIORS =======")
-    report = ceres->solve(ReportVerbosity::FULL);
+    report = ceres->solve(SolverManager::ReportVerbosity::FULL);
     WOLF_INFO(report);  // should show a very high iteration number (more than 10, or than 100!)
     problem->print(1, 0, 1, 0);
 
     // GET COVARIANCES of all states
     WOLF_INFO("======== COVARIANCES OF SOLVED PROBLEM =======")
-    ceres->computeCovariances(CovarianceBlocksToBeComputed::ALL_MARGINALS);
+    ceres->computeCovariances(SolverManager::CovarianceBlocksToBeComputed::ALL_MARGINALS);
     for (auto& kf_pair : problem->getTrajectory()->getFrameMap())
     {
         Eigen::MatrixXd cov;