Add fuzz inputs

[dergoegge]

mv fuzz_corpora fuzz_inputs_moved
../bitcoin/build_fuzz/test/fuzz/test_runner.py -l DEBUG --par $( nproc ) --m_dir ./fuzz_inputs_moved/  --m_dir server_corpora/
git restore -- ./fuzz_corpora
git add ./fuzz_corpora
git commit -m "Add fuzz inputs"

[maflcko]

this pull: https://drahtbot.space/host_reports/DrahtBot/reports/coverage_fuzz/monotree/7e58c94112d061af/49c44471e1314e92/fuzz.coverage/index.html

main: https://drahtbot.space/host_reports/DrahtBot/reports/coverage_fuzz/monotree/7e58c94112d061af/37f289ce9e4a62df/fuzz.coverage/index.html

[maflcko]

Looks like a mild .1% increase over all metrics.

lgtm