extract_utils: Introduce colored echo helper function

Change-Id: I25db42087232c646525f281cc0a1404fe60d1c8c

extract_utils.sh

@@ -1783,3 +1783,24 @@ function generate_prop_list_from_image() {
     # Clean-up
     rm -f "$output_list_tmp"
 }
+
+function colored_echo() {
+    IFS=" "
+    local color=$1;
+    shift
+    if ! [[ $color =~ '^[0-9]$' ]] ; then
+        case $(echo $color | tr '[:upper:]' '[:lower:]') in
+        black) color=0 ;;
+        red) color=1 ;;
+        green) color=2 ;;
+        yellow) color=3 ;;
+        blue) color=4 ;;
+        magenta) color=5 ;;
+        cyan) color=6 ;;
+        white|*) color=7 ;; # white or invalid color
+        esac
+    fi
+    tput setaf $color
+    printf '%s\n' "$*"
+    tput sgr0
+}