Added motd handling (debian specific) and check if chezmoi managed files

have changes.

dot_bashrc.d/executable_11.motd

@@ -0,0 +1,5 @@
+if [ -d /etc/update-motd.d ]; then
+    for f in /etc/update-motd.d/* ; do
+        . "$f"
+    done
+fi

dot_bashrc.d/executable_12.chezmoi

@@ -0,0 +1,9 @@
+if chezmoi >/dev/null
+then
+    if [[ $(chezmoi diff | wc -l) != "0" ]]; then
+        echo 
+        echo "== chezmoi files have changed =="
+        echo 
+        chezmoi diff
+    fi
+fi