EMOD 2.18 release

.user
Adding TBHIV regression tests.
Updating project processors and regression tests.
initializing parameter that could go uninitialized
Adding MSVCSConscript.
Updating list of diseases for scons builds.
Updating list of diseases for scons builds.
Updating list of PreprocessorDefinitions for scons builds.
Updating the list of coreLib source files needed for scons builds.
Updating list of PreprocessorDefinitions for scons builds.
Adding SFT test to TBHIV for HIVSimpleDiagnostic.
Adding SFT test to TBHIV for HIVSimpleDiagnostic.
Adding TBHIV_ByAge and VectorStatsMalaria reporters.
2.18 README.