add contains function

[neheb]

Signed-off-by: Rosen Penev rosenp@gmail.com

[ghost]

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[codecov]

Codecov Report

Merging #2500 (d66e054) into main (52ab999) will increase coverage by 0.00%.
The diff coverage is 62.96%.

❗ Current head d66e054 differs from pull request most recent head b577f9e. Consider uploading reports for the commit b577f9e to get more accurate results

@@           Coverage Diff           @@
##             main    #2500   +/-   ##
=======================================
  Coverage   64.66%   64.67%           
=======================================
  Files         103      104    +1     
  Lines       22247    22256    +9     
  Branches    10858    10863    +5     
=======================================
+ Hits        14386    14394    +8     
+ Misses       5620     5619    -1     
- Partials     2241     2243    +2     

Impacted Files	Coverage Δ
app/exiv2.cpp	63.32% <0.00%> (ø)
src/canonmn_int.cpp	73.41% <0.00%> (-0.08%)	⬇️
src/makernote_int.cpp	66.79% <0.00%> (ø)
src/olympusmn_int.cpp	44.68% <0.00%> (ø)
src/bmffimage.cpp	73.15% <50.00%> (-0.06%)	⬇️
src/xmpsidecar.cpp	67.28% <66.66%> (ø)
src/easyaccess.cpp	94.44% <100.00%> (ø)
src/nikonmn_int.cpp	63.11% <100.00%> (ø)
src/sonymn_int.cpp	80.48% <100.00%> (ø)
src/utils.hpp	100.00% <100.00%> (ø)
... and 12 more

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[neheb]

Issue found with https://clang.llvm.org/extra/clang-tidy/checks/abseil/string-find-str-contains.html

[neheb]

ping @kmilos