FeatureRequest: support for setting up Experimental Agent Options

[jtjeferreira]

I would like to use the features described in here like agent-extracted-predefined-classes or experimental-omit-config-from-classpath, but I don't think there is any way to set them because the agentOptions is created like this:

val agentOption = s"-agentlib:native-image-agent=$agentConfig=${nativeImageAgentOutputDir.value}"`