Add fuzz inputs

[maflcko]

C.f. last one: #184

mv fuzz_seed_corpus fuzz_inputs_moved
../bitcoin-core/test/fuzz/test_runner.py -l DEBUG --par $( nproc ) --m_dir ./fuzz_inputs_moved/  --m_dir ./results_from_working_farm --m_dir ../etc/... ./fuzz_seed_corpus
git restore -- ./fuzz_seed_corpus
git add ./fuzz_seed_corpus
git commit -m "Add fuzz inputs"

[maflcko]

Main: https://drahtbot.space/host_reports/DrahtBot/reports/coverage_fuzz/monotree/c81c6bf65b34eb91/e323616154b6891e/fuzz.coverage/index.html
This pull: https://drahtbot.space/host_reports/DrahtBot/reports/coverage_fuzz/monotree/c81c6bf65b34eb91/f50cf5ad0fce12d3/fuzz.coverage/index.html

[murchandamus]

See that it only adds stuff, and looked over the fuzz coverage reports. LGTM f50cf5a

[maflcko]

@dergoegge