Analyze and document RAI installation footprint

[adamdbrw]

Is your feature request related to a problem? Please describe.
RAI is a R&D framework and at the moment has a footprint which might be more suitable to run on the edge. As RAI matures, we need to take steps to map out the work needed to minimize its footprint and consider on-board deployments.

Describe the solution you'd like
An analysis of installation size and memory footprint for RAI (and its dependencies), package & feature-wise, where the current state is documented and instructions as well as an automated script to repeat the analysis is submitted in the PR.

Additionally, users need to be informed about large dependencies for core and optional packages.

Additional context
Connected to #302

[maciejmajek]

In order not to commit premature optimization, we will focus on delivering results with smaller LLMs and then move to footprint analysis.