feat: lookup network in evmchains; plugin-less networks, adhoc networks w/ correct name

[antazoey]

What I did

• Make it so if you connect to a network Ape hasn't an installed plugin for, it will look it up in evmchains and "just work"
• Make it so if you use a custom network e.g. connecting using a URL only, and that network is found in evmchains, it will set the correct names for the network

How I did it

Use evmchains library.

How to verify it

First, I have no plugin for moonbeam installed, but yet i can do this:

ape console --network moonbeam

and it "just works"

Second, if I connect to a URL in the same fashion:

ape console --network "https://moonriver.unitedbloc.com"

Not only does it work (did before), but the network name and stuff is correct:

In [1]: provider.network.name
Out[1]: 'moonriver'

In [2]: provider.network.ecosystem.name
Out[2]: 'moonbeam'

taa daaaa

Checklist

• All changes are completed
• New test cases have been added
• Documentation has been updated

[antazoey]

Failing test only happens on Web3>=6.20.2 not on 6.20.1 (which is what i was using locally)