Stochastics implementation header boost cleanups

There are some unguarded macro definitions (potential for redefinition) and unused boost headers (lognormal.hpp) in the stochastics implementation header.

This should be cleaned up.

changed milestone to %Release vX.X.X

added Enhancement label

assigned to @rbiegel

added Work In Progress label

changed the description

mentioned in merge request !217 (merged)

changed milestone to %Release v1.2.0

removed Work In Progress label

added Work In Progress label

assigned to @adascri

removed milestone %Release v1.2.0

closed

moved to stochastics-library#8 (closed)

removed Work In Progress label