http: Add a more expressive but still nowhere near regex URL pattern matcher.

src/http.h

@@ -228,4 +228,12 @@ void tf_http_request_websocket_upgrade(tf_http_request_t* request);
 */
 const char* tf_http_status_text(int status);
 
+/**
+** Match URL patterns.  "*" matches anything, and "{word}" matches [a-zA-Z][a-zA-Z0-9]*".
+** @param pattern The pattern to match.
+** @param path The path to test.
+** @return true if the path matches the pattern.
+*/
+bool tf_http_pattern_matches(const char* pattern, const char* path);
+
 /** @} */