#306 Starting the SVN configuration page with a `crud` model
#306 SVN configuration creation dialog - wip
#306 SVN configuration creation dialog - prefix to get the field ID from the property name
#306 SVN configuration creation dialog - new item function
#306 SVN configuration creation dialog - supplementary fields
#306 SVN configuration creation dialog - all fields
#306 SVN configuration creation dialog - default field values
#306 SVN configuration creation dialog - dialog optional init/validation/read methods
#306 SVN configuration creation dialog - dialog submit
#306 SVN configuration creation
#306 [crud] Do not generate the commands twice