add ABR brushes and presets with properties and patterns

src/util.h

@@ -63,6 +63,7 @@ std::vector<std::string> split(const std::string& subject, char d, int max_split
 std::string unescape(const std::string& s);
 std::wstring str2wstr(const std::string& str);
 std::string wstr2str(const std::wstring& wstr);
+bool str_iequals(const std::string& a, const std::string& b);
 
 size_t curl_data_handler(void *contents, size_t size, size_t nmemb, void *userp);
 size_t curl_data_write(void *ptr, size_t size, size_t nmemb, FILE *stream);