rename sccp_config_entries.h sccp_enum_entries.hh, because it is not a real headerfile

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4678 43c1dc8c-776e-4df2-8ef1-6e829299be21
rename sccp_config_entries.h sccp_enum_entries.hh, because it is not a real headerfile

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4679 43c1dc8c-776e-4df2-8ef1-6e829299be21
Inline sccp_strlen, sccp_strlen_zero, sccp_strequals, sccp_strcaseequals, because they get called a lot

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4680 43c1dc8c-776e-4df2-8ef1-6e829299be21
event2str is the first of several enums which will move to sccp_enum_entries.hh. Replacing the ARR2STR macro so that the looping lookup cost is not be incured, instead it will make use of a finite flat switch/case.

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4681 43c1dc8c-776e-4df2-8ef1-6e829299be21