Split sccp_enum_entries.hh based on their namespaces / allegiance to chan_sccp_enums.hh/sccp_event_enums.hh/sccp_protocol_enums.hh. 
Created sccp_enum_macro.h to cope with this split.



git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4697 43c1dc8c-776e-4df2-8ef1-6e829299be21