support vls for lampo

[vincenzopalazzo]

Alternative for #284

[vincenzopalazzo]

CI is failing regarding configuration

error: failed to run custom build command for `lightning-storage-server v0.3.1 (https://gitlab.com/lightning-signer/validating-lightning-signer?branch=main#4e2fda4a)`
Error: failed to run custom build command for `lightning-storage-server v0.3.1 (https://gitlab.com/lightning-signer/validating-lightning-signer?branch=main#4e2fda4a)`
Caused by:
  process didn't exit successfully: `/home/runner/work/lampo.rs/lampo.rs/target/debug/build/lightning-storage-server-d1d8778d1cd2b725/build-script-build` (exit status: 101)
  --- stdout
  cargo:rerun-if-changed=proto/lss.proto
  cargo:rerun-if-changed=proto

  --- stderr
  thread 'main' panicked at /home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/prost-build-0.11.9/src/lib.rs:1457:10:
  Could not find `protoc` installation and this build crate cannot proceed without
      this knowledge. If `protoc` is installed and this crate had trouble finding
      it, you can set the `PROTOC` environment variable with the specific path to your
      installed `protoc` binary.If you're on debian, try `apt-get install protobuf-compiler` or download it from https://github.com/protocolbuffers/protobuf/releases