Alternative levels to encode multiSend in Safe -> Roles -> Safe routes

[jfschwarz]

Given a route Safe -member-> Roles -enabled-> Safe and an array of transactions T you can encode it as either:

• execThroughRole(multiSend(T)) ⁠ or
• multiSend(for t in T: execThroughRole(t)) ⁠

So far we're generally encoding the former option, but there might be advantages to the latter alternative: It does not require unwrapping on the Roles mod, sparing the user from configuring a multisend unwrapper

Would also make sense to benchmark this from a gas cost perspective.