D3PDTools: cmake cleanup, enable flake8

cmake cleanup of PhysicsAnalysis/D3PDTools packages. Enable flake8 for AnaAlgorithm and make code compliant.

This merge request affects 12 files:

• PhysicsAnalysis/D3PDTools/AnaAlgorithm/CMakeLists.txt
• PhysicsAnalysis/D3PDTools/AnaAlgorithm/python/AnaAlgSequence.py
• PhysicsAnalysis/D3PDTools/AnaAlgorithm/python/AnaAlgorithmMeta.py
• PhysicsAnalysis/D3PDTools/AnaAlgorithm/python/DualUseConfig.py
• PhysicsAnalysis/D3PDTools/AnaAlgorithm/python/Logging.py
• PhysicsAnalysis/D3PDTools/EventLoop/CMakeLists.txt
• PhysicsAnalysis/D3PDTools/EventLoopAlgs/CMakeLists.txt
• PhysicsAnalysis/D3PDTools/EventLoopGrid/CMakeLists.txt
• PhysicsAnalysis/D3PDTools/EventLoopTest/CMakeLists.txt
• PhysicsAnalysis/D3PDTools/MultiDraw/CMakeLists.txt
• PhysicsAnalysis/D3PDTools/RootCoreUtils/CMakeLists.txt
• PhysicsAnalysis/D3PDTools/SampleHandler/CMakeLists.txt

Adding @krumnack as watcher

added Analysis JetEtmiss master review-pending-level-1 labels

CI Result SUCCESS (hash d6c3ecc2)

	Athena	AthSimulation	AthGeneration	AnalysisBase
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 23545]

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

merged

mentioned in commit 50296d8f

added sweep:ignore label