message: DOC: generate doxygen for the C-style quest API
  Updates the Doxyfile.in to incllude the sources in the
  "quest/interface" folder, which consists of the quest
  C-style APIs for the different queries.
diff: @@ -791,6 +791,7 @@ INPUT = @PROJECT_SOURCE_DIR@/components/mainpage.md \
  @PROJECT_SOURCE_DIR@/components/primal/src/spatial_acceleration \
  @PROJECT_SOURCE_DIR@/components/quest/README.md \
  @PROJECT_SOURCE_DIR@/components/quest/src \
  + @PROJECT_SOURCE_DIR@/components/quest/src/interface \
  @PROJECT_SOURCE_DIR@/components/quest/src/geom \
  @PROJECT_SOURCE_DIR@/components/quest/src/stl \
  @PROJECT_SOURCE_DIR@/components/sidre/README.md \
  