Update version to 0.6.3

Update caeser to range struct and contains

Update grcov command

Update GitHub Actions

Remove travis-ci and bors

Update Regex version

Remove format and Clippy use in trvis.yml

Fix missing component in travis.yml

Update TavisCI

Update error handling

Remove AppVeyor CI

Update TravisCI yaml

Create rust.yml

Increment version

Update to use latest regex