feat: integrate official PIGWay v1.1 brand assets

SHA256SUMS

@@ -2,8 +2,8 @@
 4035aba62136040755ffdf2faf1556a49215e829c16ee44263e0ab7530fbf521  .gitignore
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 6eb7728e6e73f9568ca6fd5ad6383d13ffc638f2870fefa2d86f72f39685c0fc  LICENSE
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@@ -17,6 +17,10 @@ b54ec1f3e9fb15473910686c54142a85d387e44ea5df427a4cf1b06052e789b3  docs/RASPBERRY
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 a38fae07a9151923706ff708598bf24e89ef4ed7fb9449c3f7b4d013d6e1be93  install.sh
 8a593c290da5bd0d037aee86c35264512afd574a2a0f60f2c29e9db63e0109bd  systemd/pigway-pi-control-api.service
 1cb55de6b104a233066495e9786319305fa4f1b6f25483c108ab4f5ac9aa5700  systemd/pigway-pi-control.service