feat: devfile detection implemented in go

[lstocchi]

This adds the basic devfile detection we have in java. It takes a list of devfile and return the one that matches the most.

@kadel for your use case do you prefer to send a registry url to alizer and receive the selected devfile or you will use this method (sending a list of devfiles and have the one that matches the most returned)?

[jeffmaury]

I would expect nil, err to be used when an error is detected but I'm not a Go expert

[lstocchi]

I would expect nil, err to be used when an error is detected but I'm not a Go expert

Based on my short exp with go it seems the important thing is the error as that is used for checking. So nil or an empty struct is the same. WDYT? @kadel

[kadel]

@kadel for your use case do you prefer to send a registry url to alizer and receive the selected devfile or you will use this method (sending a list of devfiles and have the one that matches the most returned)?

To be honest, I'm not sure right now. I would say that the way how it is right now is fine. If we need something smarter that needs to communicate with the registry we can build it on top of this