Merge branch 'feat/dex' into 'dev'

.gitlab-ci.yml

Cargo.lock

Cargo.toml

rust-bins/duniter-dbex/Cargo.toml

rust-bins/duniter-dbex/README.md

rust-bins/duniter-dbex/build.rs

rust-bins/duniter-dbex/src/cli.rs

rust-bins/duniter-dbex/src/main.rs

rust-bins/duniter-dbex/src/print_found_data.rs

rust-bins/duniter-dbex/src/stringify_json_value.rs

rust-libs/dubp-wot/Cargo.toml

rust-libs/dubp-wot/src/data/mod.rs

rust-libs/dubp-wot/src/data/rusty.rs

rust-libs/dubp-wot/src/operations/centrality.rs

rust-libs/dubp-wot/src/operations/density.rs

rust-libs/dubp-wot/src/operations/distance.rs

rust-libs/dubp-wot/src/operations/mod.rs

rust-libs/dubp-wot/src/operations/path.rs

rust-libs/duniter-dbs/Cargo.toml

rust-libs/duniter-dbs/src/bc_v1.rs