added utils functions to clean up usage of pipe to null device everywhere in script

config/utilities.bash

@@ -15,4 +15,22 @@ create_sysroot() {
 
 	ln -fs lib "$SYSROOT/usr/lib64"
 	ln -fs usr/lib64 "$SYSROOT/lib64"
+}
+
+discard_out() {
+    "$@" > /dev/null
+}
+
+redirect_out() {
+    local path=$1; shift
+    "$@" > "$path"
+}
+
+discard_all() {
+    "$@" > /dev/null 2>&1
+}
+
+redirect_all() {
+    local path=$1; shift
+    "$@" > "$path" 2>&1
 }