New ASN1 macros to just implement and declare the new and free functions
and changes to mkdef.pl so it recognises them.

Use these in policyMappings extension.

util/mkdef.pl

diff --git a/util/mkdef.pl b/util/mkdef.pl
index f7f0e6e..3091e20 100755
--- a/util/mkdef.pl
+++ b/util/mkdef.pl
@@ -673,6 +673,10 @@
 						      "EXPORT_VAR_AS_FUNCTION",
 						      "FUNCTION");
 					next;
+				} elsif (/^\s*DECLARE_ASN1_ALLOC_FUNCTIONS\s*\(\s*(\w*)\s*\)/) {
+					$def .= "int $1_free(void);";
+					$def .= "int $1_new(void);";
+					next;
 				} elsif (/^\s*DECLARE_ASN1_FUNCTIONS_name\s*\(\s*(\w*)\s*,\s*(\w*)\s*\)/) {
 					$def .= "int d2i_$2(void);";
 					$def .= "int i2d_$2(void);";