[camel 3.8] create an extension for the kamelet component

[lburgazzoli]

From Camel 3.8, the kamelet component will be part of Camel [1] instead of the Camel K Runtime.
There is already an extension in the camel-k-runtime repository [2] that can be used as foundation.

[1] https://github.com/apache/camel/tree/master/components/camel-kamelet
[2] https://github.com/apache/camel-k-runtime/tree/master/camel-k-kamelet