Support setting parameters as modeline options

[nicolaferraro]

This should be the "supported" way of setting options for running files.

On an integration file:

// camel-k: dependency=camel-hl7 trait=quarkus.enabled=true

from("...")...

This way:

• information about how to run a file are self-contained in the file
• we don't forget about an external config file that overrides our settings
• the semantics is well defined: it's like those options are passed to the command line together with other options that you pass

It should also work:

• with multiple lines (each one starting with comment and "camel-k: "
• in multiple files (e.g. linked with "--source" or via args)

[lburgazzoli]

@nicolaferraro once done, I would remove the kamel/run/integrations/$name support from the config file so you can still have default run parameters taken from the file but for specific integration you should use the modeline