Release/v0.12.0

[lrschaef]

Reason for this PR

• Merge new release into main

Changes in this PR

Authentication Service

• Added support for ETags
• Bumped Version of Lagom to 1.6.4
• Added all messages to serialization registry

  Certificate Service

• Added support for ETags
• Bumped Version of Lagom to 1.6.4
• Added certificate state deletion if corresponding user gets deleted
• Added all messages to serialization registry

  Configuration Service

• Added support for ETags
• Bumped Version of Lagom to 1.6.4
• Added all messages to serialization registry

  Course Service

• Added support for ETagsr
• Bumped Version of Lagom to 1.6.4
• Added all messages to serialization registry

  Matriculation Service

• Changed Matriculation to the new proposal system
• Added support for ETags
• Implemented new hyperledger API
• Bumped Version of Lagom to 1.6.4
• Added all messages to serialization registry

  User Service

• Added support for ETags
• Changed email addresses, first names and last names for the default users
• Changed toPublic to fill in the public information, instead of removing the private information
• Bumped Version of Lagom to 1.6.4
• Added all messages to serialization registry

This release of version v0.12.0 consists of the following individual versions for each Service.	Service	version
Authentication	v0.12.0
Certificate	v0.12.0
Configuration	v0.12.0
Course	v0.12.0
Matriculation	v0.12.0
User	v0.12.0