Enhance dnsmasq setup with new scripts and documentation

- Add custom dictionary words for spell checking.
- Refactor wild-central-generate-setup script for improved error handling and structure.
- Create README.md for central dnsmasq setup with detailed instructions.
- Implement create-setup-bundle.sh and setup.sh scripts for setting up dnsmasq and PXE booting.
- Add transfer-setup-bundle.sh for transferring setup files to the server.
- Update SETUP.md with clearer instructions for initial setup and configuration.
- Introduce .gitignore for dnsmasq setup bundle.

central-setup/dnsmasq/bin/transfer-setup-bundle.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+if [ ! -d ".wildcloud" ]; then
+    echo "Error: You must run this script from a wild-cloud directory"
+    exit 1
+fi
+
+SERVER_HOST=$(wild-config cloud.dns.ip2) || exit 1
+SETUP_DIR="./cluster/dnsmasq/setup-bundle"
+DESTINATION_DIR="~/dnsmasq-setup"
+
+echo "Copying DNSMasq setup files to ${SERVER_HOST}:${DESTINATION_DIR}..."
+scp -r ${SETUP_DIR}/* root@${SERVER_HOST}:${DESTINATION_DIR}