MT#57110 New cdr aggregated field r_ua

Add r_ua for cdrs, this field will store the user agent
answering to the first invite with 200 OK.

Change-Id: I0bf768a8cd4bb712a9c0b04cd7714878e6cec259

db_scripts/diff/15763.down

@@ -0,0 +1,4 @@
+USE accounting;
+SET autocommit=0;
+DELETE FROM cdr_tag WHERE type IN ('r_ua');
+COMMIT;

db_scripts/diff/15763.up

@@ -0,0 +1,4 @@
+USE accounting;
+SET autocommit=0;
+INSERT INTO cdr_tag (type) VALUES ('r_ua');
+COMMIT;