Reduce memory usage for easier embedding in Eclipse Che

[apupier]

Camel stack has reached max memory currently available on che.openshift.io (3G)

Camel VS Code extension is configured with 200Mi (it wasn't working with 128Mi)

https://github.com/eclipse/che-devfile-registry/blob/ac9d602a72fbe43e85a10dec3a46c9540d893127/devfiles/apache-camel-springboot/devfile.yaml#L17-L19

would be interesting to reduce it.

One idea is to provide a native image of the language server part #241

It would be great to know what is the current usage of the language server itself and see if we can start by grapping a bit here. maybe just need to set a small -Xmx when launching in VS Code? but to which value?

[apupier]

from a very first rough manual test opening one small camel file per language supported, I ended up with a max of 80Mb.