1.0.0-rc1

• Upgrade to GraalVM 19.2.0.1
• Reduce CPU usage and memory pressure significantly (e.g. a88acfd)
• Speed up allInstances (bcb1fa3)
• Various performance improvements (e.g. 32785c2 or 18c74f5)

All changes: 0.9.0...1.0.0-rc1