Improved Bash Logger (#1246)

* Improved Bash Logger

This is a first step towards having robust Bash scripts in the runner images. The changes _could_ be considered breaking, depending on our backwards compatibility definition.

* Fixed Log Formatting Issues

Co-authored-by: Callum Tait <15716903+toast-gear@users.noreply.github.com>

runner/logger.sh

@@ -1,24 +0,0 @@
-#!/bin/sh
-# Logger from this post http://www.cubicrace.com/2016/03/log-tracing-mechnism-for-shell-scripts.html
-
-function INFO(){
-    local function_name="${FUNCNAME[1]}"
-    local msg="$1"
-    timeAndDate=`date`
-    echo "[$timeAndDate] [INFO] [${0}] $msg"
-}
-
-
-function DEBUG(){
-    local function_name="${FUNCNAME[1]}"
-    local msg="$1"
-    timeAndDate=`date`
-    echo "[$timeAndDate] [DEBUG] [${0}] $msg"
-}
-
-function ERROR(){
-    local function_name="${FUNCNAME[1]}"
-    local msg="$1"
-    timeAndDate=`date`
-    echo "[$timeAndDate] [ERROR]  $msg"
-}