Be explicit about the semantics of `context`

[besteves4]

• we should be explicit about what it means to have multiple constraints within the context of the evaluation request
• it makes sense to be a logical and

[besteves4]

fixed in 7250e47#diff-258eea8610f2fbf730591fb64d10dacd6a5f724fdba5a16b8f2afc4319b3cd01 by using multiple sotw:RequestParameter

Spec still needs to be updated to include a note to say that when multiple sotw:RequestParameter are present, all of them should be satisfied

[AndreaCimminoArriaga]

I think the and makes sense, maybe it should be written in the main doc somewhere