chore: make compatible with new bal tools release

[gosuto-inzasheru]

closes #399

[gosuto-inzasheru]

@jalbrekt85 here is one way to deal with BalancerMaxis/bal_tools#41 but you can see how it is a bit weird to pack the dict into a CorePools object, only to then unpack it again. maybe support a to_dict method or something?

[jalbrekt85]

@jalbrekt85 here is one way to deal with BalancerMaxis/bal_tools#41 but you can see how it is a bit weird to pack the dict into a CorePools object, only to then unpack it again. maybe support a to_dict method or something?

ya i agree, its a bit unintuitive. i updated to make the class implicitly json serializable, so now can just do json.dump(CorePools) (same as working with dict)

[gosuto-inzasheru]

test run of address book generation: #469

results of pools.json and gauges.json were sanity checked with data team