schema: add indexes to topos Mysql tables (#13)

* topos: update topos_d.xml

To optimize DB query speedup I propose to add few indexes.

*  topos: update topos_t.xml 

To optimize DB query speedup I propose to add few indexes.

src/lib/srdb1/schema/topos_d.xml

@@ -225,4 +225,14 @@
         <colref linkend="a_callid"/>
     </index>
 
+    <index>
+        <name>a_uuid_idx</name>
+        <colref linkend="a_uuid"/>
+    </index>
+
+    <index>
+        <name>b_uuid_idx</name>
+        <colref linkend="b_uuid"/>
+    </index>
+
 </table>

src/lib/srdb1/schema/topos_t.xml

@@ -232,4 +232,14 @@
         <colref linkend="a_callid"/>
     </index>
 
+    <index>
+        <name>x_vbranch_idx</name>
+        <colref linkend="x_vbranch"/>
+    </index>
+
+    <index>
+        <name>a_uuid_idx</name>
+        <colref linkend="a_uuid"/>
+    </index>
+
 </table>