Fix relative paths, again (#418)

Co-authored-by: Tal Hadad <[email protected]>

Revert "Fix #404: simplecpp::TokenList::constFold does not fold '( 0 …

…) && 10 < X' properly (#405)" (#416)

Revert "fix: use both absolute and relative header paths in header ma…

…tching (#362)" (#415)

Fix #409 (fuzzing crash in simplecpp::Macro::expandToken()) (#412)

Fix #400 (inner macro not expanded after hash hash) (#401)

fixed #365 - do not treat standards with empty define string as unkno…

…wn (#367)

clang-tidy.yml: updated to Clang 19 (#359)

* clang-tidy.yml: updated to Clang 19

* .clang-tidy: disabled `boost-use-ranges` check

improved prerequisite checks for `__has_include` handling (#286)

Fix #335: object lifetime issue when reporting error (#336)

Fix #334 Do not assert when source file is missing (#333)