Reverberation code update
-Formated reflect_loss_test.cc to support previous applied format changes to
the reflect_loss_models.
-Added comments in eigenverb_model.cc to keep track of progress in new attempt
to compute all reverberation calculations from one calculations to all other
boundary interactions act implementation.
-Added new header, ublas_special.h. This header is the primary support to the
above mentioned implementations. Extends ublas to now do operations on vector of
vectors and vector of matrices.