v2.1.0

• Fix: Do not re-publish al00 alarms if state has not changed
• Fix: In ep01 even if the PV was connected it appeared as unknown
• Fix: Updating tdct to handle empty arrays coming from EPICS
• Feat: Forward al00 messages for tdct, se00 and senv schemas
• Feat: Export kafka_delivery_errors metric when Kafka producer permanently fails delivery
• Feat: Add support for SASL_SSL in Kafka
• Feat: Make the package installable.
• Libs: Update confluent_kafka to v2.1