Replace use of `tool<...>(...)` and `service<...>(...)` with `ToolHandle` and `ServiceHandle`

• drop VeloCaloBuilder code, as it uses an interface which has no implementation and has obvious memory leaks -- so it cannot be in active use anyway
• amalgamate component header files into their corresponding .cpp files

added cleanup modernisation labels

added 8 commits

• 9fd9f4df...5793783f - 4 commits from branch master
• d35821c0 - Replace use of `tool<...>(...)` and `service<...>(...)` with `ToolHandle` and `ServiceHandle`
• 1d48b0b6 - Remove use of `tool<...>(...)` and `service(...)`
• 18406223 - replace tool<...>(...) with PublicToolHandle
• 05508087 - replace tool<...>(...) with {,Public}ToolHandle

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added 4 commits

• de20b664 - Replace use of `tool<...>(...)` and `service<...>(...)` with `ToolHandle` and `ServiceHandle`
• 22ca84e6 - Remove use of `tool<...>(...)` and `service(...)`
• 449bce16 - replace tool<...>(...) with PublicToolHandle
• 71be46a9 - replace tool<...>(...) with {,Public}ToolHandle

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/ci-test --merge

added ci-test-triggered label

• [2021-08-19 17:37] Validation started with lhcb-master-mr#2735
• [2021-08-23 11:02] Validation started with lhcb-master-mr#2753

added 4 commits

• 2d288d3b - Replace use of `tool<...>(...)` and `service<...>(...)` with `ToolHandle` and `ServiceHandle`
• fa1b4c9f - Remove use of `tool<...>(...)` and `service(...)`
• 97a8095e - replace tool<...>(...) with PublicToolHandle
• e8aa913e - replace tool<...>(...) with {,Public}ToolHandle

Compare with previous version

added 4 commits

• 557b74c5 - Replace use of `tool<...>(...)` and `service<...>(...)` with `ToolHandle` and `ServiceHandle`
• 6ce604c3 - Remove use of `tool<...>(...)` and `service(...)`
• 5f794c07 - replace tool<...>(...) with PublicToolHandle
• 444bedba - replace tool<...>(...) with {,Public}ToolHandle

Compare with previous version

added 8 commits

• 444bedba...8e5e6731 - 4 commits from branch master
• dbf6268d - Replace use of `tool<...>(...)` and `service<...>(...)` with `ToolHandle` and `ServiceHandle`
• 1e1f1319 - Remove use of `tool<...>(...)` and `service(...)`
• 57511137 - replace tool<...>(...) with PublicToolHandle
• c2fea7cf - replace tool<...>(...) with {,Public}ToolHandle

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added 1 commit

• 702b870b - remove {I,}HltV0Upgrade

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assigned to @chasse

resolved all threads

merged

mentioned in commit 95377a82

mentioned in merge request !2375 (closed)

mentioned in merge request LHCb!2977 (merged)

mentioned in issue Moore#313 (closed)

added Tracking label