[RTADPA BW Tests] New Sprucing bandwidth test using latest-available HLT2 input.

related to: lhcb-datapkg/PRConfig!361 (merged) + lhcb-core/LHCbPR2HD!270 (merged) + lhcb-core/LHCbNightlyConf!1121 (merged)

Adds new sprucing qmt and sprucing-job-config for latest BW test job.
Updates the BW qmts restriction to detdesc to be in CMakeLists to better match convention.

ToDo:

• BWTesters + DPAWP1
  • Shunan Approved
• CI-test (in parallel)
• DmitryPopov's magic step post-merge # Requested

Hlt/Hlt2Conf/tests/options/bandwidth/spruce_bandwidth_input_previous_hlt2.py

@@ -8,7 +8,15 @@
 # granted to it by virtue of its status as an Intergovernmental Organization  #
 # or submit itself to any jurisdiction.                                       #
 ###############################################################################
-# Imports for current HLT2 config running in the pit
+'''
+Configure input files for the Sprucing bandwidth test on 'previous-hlt2'
+
+This is needed for the qmtest in Moore.
+For the test in LHCbPR, the input files are configured by
+$PRCONFIGROOT/python/MooreTests/run_bandwidth_test_jobs.py
+
+If updating, please also inform one of: @lugrazet @rjhunter @shunan
+'''
 from Moore import options
 
 options.dddb_tag = "dddb-20171010"
@@ -22,6 +30,5 @@ options.input_raw_format = 0.5
 options.input_files = [
     'mdf:root://eoslhcb.cern.ch//eos/lhcb/storage/lhcbpr/www/UpgradeRateTest/hlt2_bw_testing__production__full.mdf'
 ]
-options.input_manifest_file = [
-    'root://eoslhcb.cern.ch//eos/lhcb/storage/lhcbpr/www/UpgradeRateTest/hlt2_bw_testing__production.tck.json'
-]
+options.input_manifest_file = 'root://eoslhcb.cern.ch//eos/lhcb/storage/lhcbpr/www/UpgradeRateTest/hlt2_bw_testing__production.tck.json'
+