Use the wapp.h header in tests

compile

@@ -61,7 +61,7 @@ case $COMPONENTS in
     ;;
 esac
 
-TEST_INCLUDE="$(find src -type d | xargs -I{} echo -n "-I{} ") $(find tests -type d | xargs -I{} echo -n "-I{} ")"
+TEST_INCLUDE="-Isrc $(find tests -type d | xargs -I{} echo -n "-I{} ")"
 TEST_SRC="$(find tests -type f -name "*.c" | xargs -I{} echo -n "{} ")"
 
 BUILD_DIR="libwapp-build/$PLATFORM-$BUILD_TYPE"