- add the `llama stack version` command that accepts modifiers to get
additional informations
- without any argument it displays the build version as the llama
--version command
- -o table,json allows to change output format
- --dependencies display the dependency list used to build llamastack
- --build-info displays the build information
- --all display both and build version
Signed-off-by: Akram Ben Aissi <akram.benaissi@gmail.com>