bb842eea55
Vendor the sunspec plugin into this repo so the Fronius work and the upstream storage fixes can live here. Sources only: build artefacts and generated plugininfo headers are excluded. libnymea-sunspec is deliberately NOT vendored - the plugin must stay rebasable on upstream nymea, so it links against libnymea-sunspec-dev. sunspec.pri resolves it via pkg-config, with a NYMEA_SUNSPEC_PATH override for a local sysroot, mirroring modbus.pri. See sunspec/VENDORED.md.