add virtualbox guest parts, remove del kernel, not needed in minimal images

lxqtpack.ks

@@ -23,7 +23,7 @@ tar
 timezone
 passwd
 kernel-generic-5.4-latest
-kernel-generic-5.4-devel-latest
+kernel-modules-virtualbox-guest-generic-5.4-latest
 syslinux
 task-x11
 openbox
@@ -59,6 +59,7 @@ tree
 qpdfview
 quota
 udisks2
+virtualbox-guest-additions
 wsdd
 
 #--------additional----------#