Allow to set LM and RM per module on constructors and forward func

[neoxelox]

This PR allows to set LM and RM per module on their constructors or dynamically when calling them.

Note that I removed the query_only=True parameter on the existent with dsp.settings.context in the predictor forward because I checked and that parameter is only used on dsp.TemplateV2 but dspy is using dsp.TemplateV3.

[okhat]

Thank you so much @Neoxelox !

btw @KarelDO is this what you have in mind too?

[okhat]

Pinging @KarelDO also to check if this is how he'd do it

[neoxelox]

I'm closing this PR because I have seen that a lot of places (outside of the predictor) the code is relying on the global set dsp.settings.lm, ex.: ChainOfThought / ChainOfThoughtWithHint / compile() / majority_vote() / bootstrap / the history itself...

So I'm not feeling confident enough to make that change myself and risking library stability. I will wait until the big refactor is done, maybe you even add this feature yourselves.