[sozo] Library call to read the value of a system

[ponderingdemocritus]

Is your feature request related to a problem? Please describe.
This is similar to #852 however this can be implemented in the current build without any core changes

Often you want to know a computed value in your world, and this can be achieved by using a Library call on the world.

The requested feature is to extend sozo to make this possible.

Describe the solution you'd like

It should have a syntax something like:

sozo view <system>

Which would return the value of the system.

It has been implemented in the JS package here:
/~https://github.com/dojoengine/dojo/blob/main/packages/core/src/provider/RPCProvider.ts#L146

[ponderingdemocritus]

thinking of this - it might make sense to not do this in sozo and push to use Starkli