v1.2.0

Changelog

• Create CODE_OF_CONDUCT.md by @yusukebe in #14
• Move utility functions to util.go by @yusukebe in #16
• Refactor/option parser by @yusukebe in #17
• Automate cross-compilation process using goreleaser by @jossemarGT in #18
• Separator Options by @yusukebe in #19
• Add GitHub actions for CI and Release processes by @jossemarGT in #20
• Update goreleaser config to release as draft by @yusukebe in #22

Full Changelog: v1.1.0...v1.2.0