fix fmtp pass through in pass through mode for amr and g729, add pass through mode for mod_amr, and add mod_amr to the windows build (in pass through mode) To build mod_amr in NON pass through mode you must now have the lib in libs/amr dir in your src tree.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4381 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/codecs/mod_g729/mod_g729.c

@@ -50,6 +50,9 @@ static switch_status_t switch_g729_init(switch_codec_t *codec, switch_codec_flag
 {
 #ifdef G729_PASSTHROUGH
 	codec->flags |= SWITCH_CODEC_FLAG_PASSTHROUGH;
+    if (codec->fmtp_in) {
+        codec->fmtp_out = switch_core_strdup(codec->memory_pool, codec->fmtp_in);
+    }
 	return SWITCH_STATUS_SUCCESS;
 #else 
 	struct g729_context *context = NULL;