feat(cmd): install resource requirements flag

[squakez]

Adding a flag to allow setting operator Pod resources as specified in https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/

With this PR we can install the operator (both regular and OLM) specifing resources such as memory and CPU, ie:

kamel install --operator-resources limits.memory=256Mi --operator-resources limits.cpu=500m

Release Note

feat(cmd): install operator resource requirements option

[squakez]

cc @astefanutti you may have a look at this as it is similar to other installation requirements we introduced lately, thanks!

[astefanutti]

LGTM! May I suggest to rename the --resources-requirements option to --operator-resources, so that it's explicit it concerns the operator, as the install command manages other resources, like the CRDs.

[astefanutti]

Thanks!