kdc: preserve value types in auditing

Preserve integer/boolean audit values as their native types; convert to strings
when logging only. This commit goes some way towards unifying the two auditing
APIs.

lib/base/version-script.map

@@ -29,6 +29,8 @@ HEIMDAL_BASE_1.0 {
 		heim_array_iterate_reverse_f;
 		heim_array_set_value;
 		heim_audit_addkv;
+		heim_audit_addkv_bool;
+		heim_audit_addkv_number;
 		heim_audit_addkv_object;
 		heim_audit_addkv_timediff;
 		heim_audit_addreason;
@@ -150,6 +152,7 @@ HEIMDAL_BASE_1.0 {
 		heim_null_create;
 		heim_number_create;
 		heim_number_get_int;
+		heim_number_get_long;
 		heim_number_get_type_id;
 		heim_openlog;
 		heim_path_copy;