feat: add a deployable compose file with a socket proxy

.env.example

@@ -0,0 +1,12 @@
+CF_API_TOKEN=
+CF_ZONE_ID=
+DOMAIN=example.com
+TARGET=192.0.2.10
+RECORD_COMMENT=managed by traefik-cloudflare-dns
+DELETE_AFTER=1h
+# RECORD_TAGS=
+# PROXIED=false
+# TTL=1
+# RESYNC_INTERVAL=1m
+# DRY_RUN=false
+# LOG_LEVEL=info