contrib/devtools

• bitcoin-tidy/
• deterministic-fuzz-coverage/
• deterministic-unittest-coverage/
• iwyu/
• README.md
• check-deps.sh
• circular-dependencies.py
• clang-format-diff.py
• gen-bitcoin-conf.sh
• gen-manpages.py
• headerssync-params.py
• split-debug.sh.in