etl

e31c2756 - Fix clang warnings on etl::unordered_map, etl::unordered_multimap, and etl::unordered_set (#88)

Fix clang warnings on etl::unordered_map, etl::unordered_multimap, and etl::unordered_set (#88) * Fix unused variable warning in etl::unordered_map * Fix unused parameter warnings in etl::unordered_map/multimap/set