adds new flags to default ini file

configs/defaultConfig.ini

@@ -1,6 +1,9 @@
 allowMissingConfig = false  # Don't terminate the app if the ini file cannot be read.
 allowUnknownFlags = false  # Don't terminate the app if ini file contains unknown flags.
 configUpdateInterval = 0s  # Update interval for re-reading config file set via -config flag. Zero disables config file re-reading.
+dirSuffixToSkip = 0  # Set the number of directories at the end of the filepath to remove to build the category (e.g. value of 1: /foo/png/img.png results in foo/img.png).
+extension =   # Supported file extensions. Flag can be specified multiple times. Uses jpg and png if omitted.
+ignoreDir =   # Directories that should be ignored. Flag can be specified multiple times for more than one directory.
 imagesRootPath =   # This is the images root path that should be mirrored to piwigo.
 logLevel = info  # The minimum log level required to write out a log message. (panic,fatal,error,warn,info,debug,trace)
 noUpload = false  # If set to true, the metadata gets prepared but the upload is not called and the application is exited with code 90