Various non-functional fixes/changes

Fix EditorConfig failure in modules/libcom/RTEMS/epicsNtp.c
Add dbDefs to Sphinx API index, move devLib to libcom
Rename internal CA enum tag to fix Doxygen complaint
Set Clang's minimum MacOS version for aarch64 CPUs

modules/ca/src/client/access.cpp

@@ -956,7 +956,7 @@ const unsigned short dbr_value_size[LAST_BUFFER_TYPE+1] = {
 };
 
 //extern "C"
-const enum dbr_value_class dbr_value_class[LAST_BUFFER_TYPE+1] = {
+const enum dbr_value_class_e dbr_value_class[LAST_BUFFER_TYPE+1] = {
     dbr_class_string,       /* string max size              */
     dbr_class_int,          /* short                        */
     dbr_class_float,        /* IEEE Float                   */

modules/ca/src/client/db_access.h

@@ -554,13 +554,13 @@ LIBCA_API extern const unsigned short dbr_value_size[];
 
 #ifndef db_accessHFORdb_accessC
 /* class for each type's value */
-enum dbr_value_class {
+enum dbr_value_class_e {
                 dbr_class_int,
                 dbr_class_float,
                 dbr_class_string,
                 dbr_class_max};
 
-LIBCA_API extern const enum dbr_value_class dbr_value_class[LAST_BUFFER_TYPE+1];
+LIBCA_API extern const enum dbr_value_class_e dbr_value_class[LAST_BUFFER_TYPE+1];
 
 /*
  * ptr to value given a pointer to the structure and the DBR type