* Declare in corresponding header files and dissolve main.h
Apply include-what-you-use
* Remove further unncessary includes
* Incorporate review comment
* Do not declare static functions and variables in header
* Adapt test
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
* Remove unused include in Variant.h
* Remove unused include in util.h
* Remove unused include directives in util.cpp
* Remove unused include directives in TF2.h
* Remove unused include directives in TF2.cpp
* Remove unused include directive in TDB2.h
* Remove unused include directives in TDB2.cpp
* Remove unused include directives in Task.h
* Remove unused include directive in rules.cpp
* Remove unused include directives in rules.cpp
* Remove unused include directives in nag.cpp
* Remove unused include directive in main.h
* Remove unused include directive in legacy.cpph
* Remove unused include directive in Hooks.cpp
* Remove unused include directive in Filter.h
* Remove unused include directive in Filter.cpp
* Remove unused include directive in feedback.cpp
* Remove unused include directive in Eval.cpp
* Remove unused include directives in dependency.cpp
* Remove unused include directivess in Context.cpp
