Sequencer new option to open sequence config file when initialised using initSeqConfig

Sequences with exit in step_config, changed to return to support opening config file on first run

seqs/debianrpi.sh

@@ -50,7 +50,7 @@ step_1() {
     toolDownUrl="$1"
   else
     echoerr " [E] No image file provided for download"
-    exit -1
+    exit 1
   fi
 
   toolDownFile="/tmp/${toolDownUrl//*\//}"
@@ -129,7 +129,7 @@ step_10_alias() { ALIAS="setup"; }
 step_10() {
   if [ -z "$(ls /etc/default | grep raspi)" ] ; then
     echoerr " [E] Not on a Raspberry pi"
-    return -1
+    return 1
   fi
 
   exe apt update
@@ -143,7 +143,7 @@ step_11() {
   local localUsDefault="$localUs UTF-8"
   if [ ! -f "$localesConfigLoc" ] ; then
     echoerr " [E] Install packages locales first"
-    exit -1
+    exit 1
   fi
 
   exe sed -i "s/#[[:space:]]*\($localUsDefault\)/\1/" "$localesConfigLoc"