cli: add a binding sub command

[lburgazzoli]

We should have a kamel subcommand to create KameltBinding, something like:

kamelet bind --from=telegram-text-source --to=my-topic@kafka.strimzi.io/v1beta1:KafkaTopic 

Things to take into account:

• how to properly bind properties to a kamelet, when it is used multiple times

[lburgazzoli]

Thinking a little bit more, we can also add options to define intermediate steps and error handling, like:

kamelet bind 
	--from=telegram-text-source 
    --step=log-action
    --step=filter-action
    --to=my-topic@kafka.strimzi.io/v1beta1:KafkaTopic
    --error-handler=my-error-handler

[heiko-braun]

What about --steps=[one,two, three, ...] (ordered list)?

[heiko-braun]

Also, will we have kamel rebind at some point? (similar to redeploy) Asking for a friend who wonders how updates to bindings are performed

[nicolaferraro]

So, the impl in #2183 does a redeploy by default in case of matching binding name (which is computed after the bound resources, or it can be passed as --name arg).
The CLI has a nice sintax for multiple steps that is like:

--step kamelet1 --step kamelet2

They are kept sorted. The problem is when kamelet1 has a required parameter... how do we specify it?