Update Code and README for GenAIComps Refactor (#1285)

Signed-off-by: lvliang-intel <liang1.lv@intel.com>
Signed-off-by: chensuyue <suyue.chen@intel.com>
Signed-off-by: Xinyao Wang <xinyao.wang@intel.com>
Signed-off-by: letonghan <letong.han@intel.com>
Signed-off-by: ZePan110 <ze.pan@intel.com>
Signed-off-by: WenjiaoYue <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>

ChatQnA/tests/test_compose_on_rocm.sh

@@ -76,6 +76,8 @@ function start_services() {
         sleep 1s
         n=$((n+1))
     done
+
+    echo "all containers start!"
 }
 
 function validate_service() {