Version 1.0.0-alpha.28.5 (hotfix)

Applies six hotfixes to version 1.0.0-alpha.28:

• Bugfix: ProtocolVersion.date should always be serialized.
• Bugfix: load classDiscriminator for unkown polymorphism at runtime.
• Fallback to normal polymorphic serialization for non-Json formats in UnknownPolymorphicSerializers.
• Make sure ParticipantGroupSnapshot can be serialized as BSON.
• Devices can now be optional, specified as an isOptional property on DeviceDescriptor. Now, only non-optional master devices need to be deployed. Only non-optional master devices need to be deployed. (cherry-picked from #323)
• Add assigned device role names in DeanonymizedParticipation. After having called ParticipantService.deployParticipantGroup() it was impossible to retrieve which devices were assigned to participants. A different solution to this was implemented on the main branch, including ParticipantStatus in StudyDeploymentStatus, but given the amount of changes since alpha 28, aligning this API would introduce many more breaking changes rather than this rather simplistic hotfix.

Multiplatform release accessible through Maven:
https://mvnrepository.com/artifact/dk.cachet.carp