BAdI for Master Data Maintenance

BAdi RSDMDM_CHECKS, enhancement spot RS_MD_MAINTENANCE.

https://help.sap.com/docs/SAP_NETWEAVER_750/ccc9cdbdc6cd4eceaf1e5485b1bf8f4b/c450d81091ed42c79f54e644c150cd93.html?locale=en-US&version=7.5.21