add more information to the printed error code for LSSOL backend (#32)
add more information to the printed error code for LSSOL backend (#32)

* add more information to the printed error code

* add more information to the printed error code

* use the LSSOL::inform method to print additional information if the solver failed

* change the error output format slightly

jrl-umi3218/Tasks,gergondet/Tasks,gergondet/Tasks,jrl-umi3218/Tasks,gergondet/Tasks,gergondet/Tasks,jrl-umi3218/Tasks