updates to FCAL hit smearing

[sdobbs]

Add functionality to merge energy depositions in FCAL crystals and light guides for FCAL hits including scale factor between the two.

By default this behavior is enabled and the factor is pulled from the CCDB, but there are command line switches to modify this behavior as well.

[gluex]

Test status for this pull request: SUCCESS

Summary: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/tests/summary.txt Logs: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/tests/log

Build log: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/make_sdobbs_fcal_lightguide_updates.log Build report: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/report_sdobbs_fcal_lightguide_updates.txt Location of build: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates

[gluex]

Test status for this pull request: SUCCESS

Summary: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/tests/summary.txt Logs: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/tests/log

Build log: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/make_sdobbs_fcal_lightguide_updates.log Build report: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/report_sdobbs_fcal_lightguide_updates.txt Location of build: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates

[markdalton]

Maybe the message on line 241 of mcsmear.cc should indicate that the default is from CCDB?

[gluex]

Test status for this pull request: SUCCESS

Summary: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/tests/summary.txt Logs: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/tests/log

Build log: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/make_sdobbs_fcal_lightguide_updates.log Build report: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates/report_sdobbs_fcal_lightguide_updates.txt Location of build: /work/halld/pull_request_test/halld_sim^sdobbs_fcal_lightguide_updates