Introduce apt_install_wrapper function to run apt commands depending …

…on the terminal (#90)

lib/armbian-configng/config.ng.system.sh

@@ -1,6 +1,27 @@
 #!/bin/bash
 
 
+ module_options+=(
+["apt_install_wrapper,author"]="igorpecovnik"
+["apt_install_wrapper,ref_link"]=""
+["apt_install_wrapper,feature"]="Install wrapper"
+["apt_install_wrapper,desc"]="Install wrapper"
+["apt_install_wrapper,example"]="apt_install_wrapper apt-get -y purge armbian-zsh"
+["apt_install_wrapper,status"]="Active"
+)
+#
+# @description Use TUI / GUI for apt install if exists
+#
+function apt_install_wrapper
+{
+if [ -t 0 ] ; then
+	debconf-apt-progress -- $@
+else
+	# Terminal not defined - proceed without TUI
+	$@
+fi
+
+
 module_options+=(
 ["install_de,author"]="Igor Pecovnik"
 ["install_de,ref_link"]=""