This PR introduces rust binding generation. I have a few open but I wanted to open the PR to gauge if this would be viable to merge.

TODO

• deploy.sh is stubbed and needs to be implemented.
  • currently it skips all publishing of artifacts both to an unknown primary cloudsmith repo and crates.io
• CI environment setup for rust

Notes for Reviewer

Most of the generated code should be standard for the upstream swagger rust module. Notably there are two template overrides included here

• Cargo.mustache
  • Added package metadata for publishing.
• api.mustache
  • Renamed the query variable as it conflicted with a param used by the cloudsmith api.