Features
- Add support for HTTPie's Sessions, see #125 (@ducaale)
- Send and display headers names as title case for non-HTTP/2 requests and responses, see #167 (@blyxxyz)
- Support using the system's TLS library via --native-tls flag, see #154 (@blyxxyz)
- Support listing default args in a config file, see #165 (@ducaale)