Adds a property, `hookNames`, to each RPC method handler export in `app/scripts/lib/rpc-method-middleware` and a function, `selectHooks`, to select from them.
`createMethodMiddleware` receives a giant `opts` object that includes a bunch of different methods from `MetaMaskController` and its subcontrollers. Each method implementation only requires a subset of these methods to do its work. Because they need some kind of name, we call these methods "hooks". With this change, whenever an RPC method is called, `selectHooks` will be called to ensure that each method only receives the hooks that it needs in order to do its job.
This implementation is based on [work in `snaps-skunkworks`](https://github.com/MetaMask/snaps-skunkworks/blob/a3e1248/packages/rpc-methods/src/utils.ts#L17-L34) that will be merged in the near future.
* Moving RPC Urls to network constants
* Including RPC url in switchEthereumChain requestData
* Setting project id to var
* Fix built-in networks switch-ethereum-chain
`switch-ethereum-chain` did not work correctly with built-in networks.
It was treating them as custom networks, rather than as built-in
networks. This affected how they were displayed in the network
dropdown, and resulted in slight differences to the network stack used
as well.
The problem was that `updateRpcTarget` was used, which was meant for
custom networks only. Now that `setProviderType` is used in the case of
a built-in network, the behaviour should match the network switcher
exactly.
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
