add skeleten functions to dump mysql, mongodb, and package list

src/config.example

@@ -1,4 +1,4 @@
-#BORG="/usr/bin/borg"
+git#BORG="/usr/bin/borg"
 
 SYSTEM_NAME="name-of-computer"
 BORG_REPO="<user>@<reposerver>:/srv/borg/${SYSTEM_NAME}"
@@ -6,6 +6,11 @@ BORG_REPO="<user>@<reposerver>:/srv/borg/${SYSTEM_NAME}"
 # If using a non-standard SSH port ssh:// have to be specified (per borg v1.0.9)
 #BORG_REPO="ssh://<user>@<reposerver>:<ssh_port>/srv/borg/${SYSTEM_NAME}"
 BORG_PASSPHRASE="longandcomplexpassphrase"
+
+DUMP_DIR="/srv/dumps"
+MYSQL_ROOT_PASSWORD=""
+MONGODB_ROOT_PASSWORD=""
+
 PATHS=(
     "/etc"
     "/home"