[ref] whole: rename crate duniter-module -> durs-module

.gitlab-ci.yml

Cargo.lock

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

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

lib/core/conf/Cargo.toml

lib/core/conf/src/lib.rs

lib/core/conf/test/v1/conf-upgraded.json

lib/core/core/Cargo.toml

lib/core/core/change_conf.rs

lib/core/core/cli/modules.rs

lib/core/core/lib.rs

lib/core/core/router.rs

lib/core/message/Cargo.toml

lib/core/message/lib.rs

lib/core/message/responses.rs

lib/core/module/Cargo.toml

lib/core/module/clippy.toml

lib/core/module/src/lib.rs

lib/core/network/Cargo.toml

lib/core/network/lib.rs