Update plex-install.sh

- add vainfo and intel-gpu-tools
- code refactoring

install/plex-install.sh

@@ -21,14 +21,7 @@ msg_ok "Installed Dependencies"
 
 if [[ "$CTTYPE" == "0" ]]; then
   msg_info "Setting Up Hardware Acceleration"
-  $STD apt-get -y install \
-    va-driver-all \
-    ocl-icd-libopencl1 
-  if [[ ${PCT_OSVERSION} == "20.04" ]]; then 
-  $STD apt-get install -y beignet-opencl-icd
-  else
-  $STD apt-get install -y intel-opencl-icd
-  fi
+  $STD apt-get -y install {va-driver-all,ocl-icd-libopencl1,intel-opencl-icd,vainfo,intel-gpu-tools}
   chgrp video /dev/dri
   chmod 755 /dev/dri
   chmod 660 /dev/dri/*