add erlang MAP code (from OTP)
diff --git a/asn1/UnidialoguePDUs.asn b/asn1/UnidialoguePDUs.asn
new file mode 100644
index 0000000..4244cc8
--- /dev/null
+++ b/asn1/UnidialoguePDUs.asn
@@ -0,0 +1,26 @@
+-- Generated by Asnp, the pretty-printer of France Telecom R&D (http://asn1.elibel.tm.fr/asnp/)
+-- Module UnidialoguePDUs (Q.773:06/1997)
+UnidialoguePDUs {itu-t recommendation q 773 modules(2) unidialoguePDUs(3)
+ version1(1)} DEFINITIONS ::=
+BEGIN
+
+EXPORTS uniDialogue-as-id, UniDialoguePDU;
+
+-- Abstract syntax name for unstructured dialogue APDUs
+uniDialogue-as-id OBJECT IDENTIFIER ::=
+ {itu-t recommendation q 773 as(1) unidialogue-as(2) version1(1)}
+
+UniDialoguePDU ::= CHOICE {unidialoguePDU AUDT-apdu
+}
+
+AUDT-apdu ::= [APPLICATION 0] IMPLICIT SEQUENCE {
+ protocol-version
+ [0] IMPLICIT BIT STRING {version1(0)} DEFAULT {version1},
+ application-context-name [1] OBJECT IDENTIFIER,
+ user-information [30] IMPLICIT SEQUENCE OF EXTERNAL OPTIONAL
+}
+
+END -- UNIDialoguePDU
+
+-- Generated by Asnp, the ASN.1 pretty-printer of France Telecom R&D
+