Issue 138 zero m

[hoene]

fix issue #138
added option for address sanitizer

[codecov]

Codecov Report

Merging #145 (fc8370c) into master (9be9888) will increase coverage by 0.12%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #145      +/-   ##
==========================================
+ Coverage   85.01%   85.13%   +0.12%     
==========================================
  Files          36       36              
  Lines        3303     3350      +47     
==========================================
+ Hits         2808     2852      +44     
- Misses        495      498       +3     

Impacted Files	Coverage Δ
src/hrtf/check.c	90.32% <100.00%> (ø)
src/hrtf/loudness.c	96.29% <100.00%> (+0.14%)	⬆️
src/hrtf/tools.c	91.08% <100.00%> (ø)
src/hrtf/kdtree.c	93.10% <0.00%> (-0.71%)	⬇️
src/hrtf/easy.c	55.44% <0.00%> (-0.23%)	⬇️
src/tests/tools.c	100.00% <0.00%> (ø)
src/tests/json.c	90.79% <0.00%> (+0.05%)	⬆️
src/resampler/speex_resampler.c	77.23% <0.00%> (+0.06%)	⬆️
src/hrtf/reader.c	82.75% <0.00%> (+0.07%)	⬆️
src/hdf/btree.c	97.80% <0.00%> (+0.07%)	⬆️
... and 19 more

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