Refactor HD Wallets for Enhanced Security (#7821)

* begin hd wallet refactor

* further simplify the new derived keymanager

* make it almost a full wrapper around an imported keymanager

* fix up the EIP test

* deprecated derived

* fixing keymanager tests

* fix up derived tests

* refactor initialize keymanager

* simplify hd

* pass some tests

* pass accounts list test

* gaz

* regenerate protos without create account privilege

* enforce account recovery on wallet create

* allow accounts delete to work

* remove mentions of accounts create

* resolve comments and go mod

* fix up tests

* build fixes

* remove insecure warning

* revert

* fix proto file

* remove create account message

* gaz

* remove account create

* update web api protos

* fix up imports

* change func sig

* tidy

Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>

go.mod

@@ -104,7 +104,6 @@ require (
 	github.com/tyler-smith/go-bip39 v1.0.2
 	github.com/urfave/cli/v2 v2.2.0
 	github.com/wealdtech/go-bytesutil v1.1.1
-	github.com/wealdtech/go-eth2-types/v2 v2.5.1
 	github.com/wealdtech/go-eth2-util v1.6.2
 	github.com/wealdtech/go-eth2-wallet-encryptor-keystorev4 v1.1.1
 	github.com/wercker/journalhook v0.0.0-20180428041537-5d0a5ae867b3