Updated .stl file for LED system light guide: added parameterized parabolic reflector model + accurate representation of the SMD LED we will use.

Fixed overlaps of intermediate SDs w/the light guide structure. Re-sized SDs & better aligned upper SD (#1) with the fiber array.

Resized intermediate SDs for overlap testing; has to push to rebuild on differet machine (UI does not run on lab desktop).

Fixed error w/CHECK_OVERLAPS flag(s) added to intermediate sensitive detectors (flag was not declared in scope).

Set CHECK_OVERLAPS flag to 'true' & added CHECK_OVERLAPS flag to placement commands of all three sensitive detectors.

Replaced kapton definition from NIST manager to manual definition to avoid error adding MPT to material

Removed a lot of items related to the ZDC light guide study. Pushing for now to switch computers. Does not compile yet

Segmented lg

See merge request !1

Removed geom.mac execution. Removed /gps/number because all photons are emitted from one point per event.