[2726] Add src/bin/ to cppcheck include path too

Makefile.am

@@ -110,7 +110,7 @@ report-coverage: report-cpp-coverage report-python-coverage
 
 # for static C++ check using cppcheck (when available)
 cppcheck:
-	cppcheck -I./src/lib --enable=all --suppressions \
+	cppcheck -I./src/lib -I./src/bin --enable=all --suppressions \
 		src/cppcheck-suppress.lst --inline-suppr \
 		--quiet --error-exitcode=1 \
 		--template '{file}:{line}: check_fail: {message} ({severity},{id})' \