move f_gen_{imsi,imei,msisdn} from L3_Templates to Osmocom_Types

Those functions don't depend on any L3 specific data structurs, and
it is not a good idea to burden every user with having to impot all
of a 2G/3G Layer3 just to generate some hexstring identifiers.

Change-Id: I7880633a46afc607f16f8aa6ea1a277f7958c95b
diff --git a/library/L3_Templates.ttcn b/library/L3_Templates.ttcn
index 2ef8773..2eb0bb2 100644
--- a/library/L3_Templates.ttcn
+++ b/library/L3_Templates.ttcn
@@ -2968,26 +2968,6 @@
 
 
 
-private function f_concat_pad(integer tot_len, hexstring prefix, integer suffix) return hexstring {
-	var integer suffix_len := tot_len - lengthof(prefix);
-	var charstring suffix_ch := int2str(suffix);
-	var integer pad_len := suffix_len - lengthof(suffix_ch);
-
-	return prefix & int2hex(0, pad_len) & str2hex(suffix_ch);
-}
-
-function f_gen_imei(integer suffix) return hexstring {
-	return f_concat_pad(14, '49999'H, suffix);
-}
-
-function f_gen_imsi(integer suffix) return hexstring {
-	return f_concat_pad(15, '26242'H, suffix);
-}
-
-function f_gen_msisdn(integer suffix) return hexstring {
-	return f_concat_pad(12, '49123'H, suffix);
-}
-
 external function enc_MobileIdentityLV(in MobileIdentityLV si) return octetstring
 	with { extension "prototype(convert) encode(RAW)" };
 
diff --git a/library/Osmocom_Types.ttcn b/library/Osmocom_Types.ttcn
index ee3b04a..4012f6d 100644
--- a/library/Osmocom_Types.ttcn
+++ b/library/Osmocom_Types.ttcn
@@ -252,4 +252,26 @@
 }
 
 
+private function f_concat_pad(integer tot_len, hexstring prefix, integer suffix) return hexstring {
+	var integer suffix_len := tot_len - lengthof(prefix);
+	var charstring suffix_ch := int2str(suffix);
+	var integer pad_len := suffix_len - lengthof(suffix_ch);
+
+	return prefix & int2hex(0, pad_len) & str2hex(suffix_ch);
+}
+
+function f_gen_imei(integer suffix) return hexstring {
+	return f_concat_pad(14, '49999'H, suffix);
+}
+
+function f_gen_imsi(integer suffix) return hexstring {
+	return f_concat_pad(15, '26242'H, suffix);
+}
+
+function f_gen_msisdn(integer suffix) return hexstring {
+	return f_concat_pad(12, '49123'H, suffix);
+}
+
+
+
 } with { encode "RAW"; variant "FIELDORDER(msb)" }