Modernize VPAlgorithms

• prefer Gaudi::Functional
• amalgamate component header into corresponding source file

added cleanup modernisation labels

/ci-test --merge

added 1 commit

• 8a3a3b0f - Modernize VPAlgorithms

Compare with previous version

changed the description

added lhcb-gaudi-head label

assigned to @mstahl

removed lhcb-gaudi-head label

approved this merge request

assigned to @rmatev and unassigned @mstahl

resolved all threads

mentioned in issue Moore#128 (closed)

@rmatev this looks good. Shall we just test it again since it has been awhile?

mentioned in issue Moore#131 (closed)

added lhcb-gaudi-head label

mentioned in merge request LHCb!2298 (merged)

Nightlies happy so I think this is ready to merge @rmatev.

removed lhcb-gaudi-head label

mentioned in issue Moore#136 (closed)

ping...

mentioned in issue Moore#141 (closed)