v2.2.0

What's Changed

• Add KCS-1 standard by @sgerbino in #254
• Adds KCS-3 by @sgerbino in #255
• #252: KCS-4 by @mvandeberg in #256
• Remove KCS-4 direction enum by @mvandeberg in #257
• Remove internal storage objects from KCS standard proto files by @mvandeberg in #258

Full Changelog: v2.1.0...v2.2.0