[Proposal] Change list of mandatory parameters for rlm_sqlippool

Hi guys, if I understood correctly configuration parameters inside rlm_sqlippool with PW_TYPE_REQUIRED are needed because logic is related with a classic SQL transaction but with some databases for examples PostrgreSQL or Oracle logic could be reduce to a single procedure / function that speedup interaction with database to a single call. So, why not remove PW_TYPE_REQUIRED to allocate_clear, allocate_update and/or others parameters? A list of parameters where remove PW_TYPE_REQUIRED is: - off_clear - on_clear - alive_update - start_update - allocate_update (allocate_find is sufficient) - allocate_clear User can be use it or not but is not a mandatory parameter and so it could be do a choice about use it or not. WDYT G.