add support for Graal VM

[cforce]

Seems like that Graal compile fails because of classes shall or should not be reachable at compile time and runtime. A cfg entry in in oracle reachabiloity github repo is needed

Failed generating 'cloud-function-aws' after 1m 12s.
Error: Classes that should be initialized at run time got initialized during image building:
 org.slf4j.LoggerFactory was unintentionally initialized at build time. To see why org.slf4j.LoggerFactory got initialized use --trace-class-initialization=org.slf4j.LoggerFactory
Error: Classes that should be initialized at run time got initialized during image building:
ch.qos.logback.core.util.Duration was unintentionally initialized at build time. To see why ch.qos.logback.core.util.Duration got initialized use --trace-class-initialization=ch.qos.logback.core.util.Duration
ch.qos.logback.classic.model.ConfigurationModel was unintentionally initialized at build time. To see why ch.qos.logback.classic.model.ConfigurationModel got initialized use --trace-class-initialization=ch.qos.logback.classic.model.ConfigurationModel
To see how the classes got initialized, use --trace-class-initialization=org.slf4j.LoggerFactory,ch.qos.logback.core.util.Duration,ch.qos.logback.classic.model.ConfigurationModel
Error: Use -H:+ReportExceptionStackTraces to print stacktrace of underlying exception
Error: Image build request failed with exit status 1
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