DEN-7147: Fixed a bug on Sub-StepIndicator on bottom of the instructions - Which was causing that to not to show correct number of the steps and titles. - removed #include "MModel.h" in all the possible cases and include the specific model since the MModel has too much include. - Showing the Heparin setup in the CART_INSTALL state only if we have a heparin volume setup. - created a common template function name enumString in Gui namespace to get the enum name as string.