[ref] module: use ApiPart for module registration

doc/en/dev/developing-a-durs-module.md

doc/fr/developpeurs/developper-un-module-durs.md

lib/core/core/src/lib.rs

lib/core/core/src/router.rs

lib/core/module/src/lib.rs

lib/modules/skeleton/Cargo.toml

lib/modules/skeleton/lib.rs

lib/modules/tui/Cargo.toml

lib/modules/tui/lib.rs

lib/modules/ws2p-v1-legacy/Cargo.toml

lib/modules/ws2p-v1-legacy/src/lib.rs

lib/modules/ws2p-v1-legacy/src/ws_connections/meta_datas.rs

lib/modules/ws2p/ws2p-messages/lib.rs

lib/modules/ws2p/ws2p/Cargo.toml

lib/modules/ws2p/ws2p/src/constants.rs

lib/modules/ws2p/ws2p/src/errors.rs

lib/modules/ws2p/ws2p/src/generate_peer.rs

lib/modules/ws2p/ws2p/src/lib.rs