Add few APIs related to call and Update Responses for Call Controller

src/main/java/net/gepafin/tendermanagement/service/impl/RegionServiceImpl.java

@@ -32,7 +32,7 @@ public class RegionServiceImpl implements RegionService {
 
     @Override
     @Transactional(readOnly = true)
-    public RegionEntity getRegionById(Long regionId) {
+    public RegionResponseBean getRegionById(Long regionId) {
        return regionDao.getRegionById(regionId);
     }