Allow user to define derivation path

[john-light]

What problem are you trying to solve?
It seems there are a few cases where people would like to use derivation paths not currently supported by MetaMask.

• Add HD path option m/44'/60'/0'/0 for Ledger wallets. #6716
• Use Trezor address derivation on Ledger #7238
• I myself would like to use the path 44'/1'/0'/0 for my Rinkeby accounts since this is also what Frame uses for Rinkeby accounts.

Describe the solution you'd like
I think rather than adding every possible derivation path users could want as a pre-set, MetaMask could simply give users the ability to set their own derivation path when setting up the wallet, for software and hardware wallets alike.

[lentils79]

Custom derivation path option for imported hardware wallets is very much needed!

[brad-decker]

Related to #8698 as well

[emariacher]

Custom derivation path option for imported hardware wallets is very much needed!

The ultimate feature would be to brute force the ethereum address when connecting the HD wallet.

[Gudahtt]

Re-opening this, as this has not yet been implemented. It was attempted in #9367, but that needed to be reverted because it was found to be unsafe (see #9875 for details).

[bghughes]

I second this as a valid issue and having this feature would dramatically help me out when using Metamask