FS-7648 adding video record/ playback test cases

conf/testing/dialplan/default/0004_record_video.xml

+<extension name="record_video">
+  <condition field="destination_number" expression="^6002$">
+    <action application="answer"/>
+    <action application="sleep" data="1000"/>
+    <action application="record" data="/tmp/record_video.mp4"/>  
+  </condition>
+</extension>
+

conf/testing/dialplan/default/0005_play_video.xml

+<extension name="play_video">
+  <condition field="destination_number" expression="^6003$">
+    <action application="answer"/>
+    <action application="sleep" data="1000"/>
+    <action application="playback" data="/tmp/record_video.mp4"/>  
+  </condition>
+</extension>
+