Use bytecode scanner to infer axis labels when using extractor functions

[holgerbrandl]

Example

sleepPatterns
    .ggplot(
x = { sleep_total/60 },
y = { sleep_rem }
).geomPoint()

We should get the java class of the lambda and then use a bytecode analyzing library to look for an invocation bytecode. See https://asm.ow2.io/