feat(Rust): add builder::Vertex and builder::VerticesBuilder support#911

Sober7135 wants to merge 8 commits intoapache:mainapache/incubator-graphar:mainfrom

Sober7135:838-rust-binding-add-vertex-builderSober7135/incubator-graphar:838-rust-binding-add-vertex-builderCopy head branch name to clipboard