dqm_algorithms: Fix cppcheck warnings.

Pass strings by const reference, not by value. Redundant string conversions. Prefer range-for. Prefer to initialize class members in an initialization list. Fix syntax errors in cling code.

This merge request affects 1 package:

• DataQuality/dqm_algorithms

This merge request affects 15 files:

• DataQuality/dqm_algorithms/dqm_algorithms/tools/AlgorithmHelper.h
• DataQuality/dqm_algorithms/dqm_algorithms/tools/DumpConfig.h
• DataQuality/dqm_algorithms/src/BinContentDump.cxx
• DataQuality/dqm_algorithms/test/print_algorithms.cpp
• DataQuality/dqm_algorithms/test/print_summarymakers.cpp
• DataQuality/dqm_algorithms/tools/DumpConfig.cxx
• DataQuality/dqm_algorithms/workbench/TestAddReference.C
• DataQuality/dqm_algorithms/workbench/TestChi2Algorithm.C
• DataQuality/dqm_algorithms/workbench/TestDivideReference.C
• DataQuality/dqm_algorithms/workbench/TestGraph.C
• DataQuality/dqm_algorithms/workbench/TestJarqueBera.C
• DataQuality/dqm_algorithms/workbench/TestKurtosis.C
• DataQuality/dqm_algorithms/workbench/TestReferenceMasking.C
• DataQuality/dqm_algorithms/workbench/TestRepeatAlgorithm_AddReference.C
• DataQuality/dqm_algorithms/workbench/TestSkewness.C

added DQ main review-pending-level-1 labels

CI Result SUCCESS (hash 82eedd14)

	Athena
externals
cmake
make
tests

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Athena: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 77472]

MR looks fine from L1 perspective - Approving.

Cheers, Steffen (L1)

added review-approved label and removed review-pending-level-1 label

mentioned in commit 25c7291b

merged