chore: refactor eotsd keys cmd

[gitferry]

Closes #63:

• Replace eotsd cli library with cobra lib to be consistent with fpd
• Remove export-pop and sign-schnorr because they are not needed for phase-2
• Reuse keys commands from cosmos-sdk
• Wrap keys add commands to save the public key and key name wrapping
• Refactor eotsd cmd folder architect

Example after change:

❯ ./build/eotsd keys add "test-key-0" --keyring-backend=test

**Important** write this mnemonic phrase in a safe place.
It is the only way to recover your account if you ever forget your password.

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name: test-key-0
pub_key_hex: e40ea1364293afd9d7400b58f336e7b6b10baf83ef31ef83b447f3fcdd928b59

[KonradStaniec]

just one question about this todo

[KonradStaniec]

oh do we have some test case for this ? or this is cosmos-sdk bug and we do not need to do anything with this ?

[gitferry]

Oh I copied it from

finality-provider/finality-provider/cmd/cmd.go

Line 18 in f7c17b1

func PersistClientCtx(ctx client.Context) func(cmd *cobra.Command, _ []string) error {

. Any ideas? @RafilxTenfen

[RafilxTenfen]

Oh, yeah I remembered
I only create the whole app to get the configs to ctx

		tempApp := app.NewTmpBabylonApp()

		ctx = ctx.
			WithCodec(tempApp.AppCodec()).
			WithInterfaceRegistry(tempApp.InterfaceRegistry()).
			WithTxConfig(tempApp.TxConfig()).
			WithLegacyAmino(tempApp.LegacyAmino()).
			WithInput(os.Stdin)

If we use the appparams.DefaultEncodingConfig() instead of tempApp := app.NewTmpBabylonApp() it fails

[RafilxTenfen]

not sure why

[gitferry]

I think we need to add std.RegisterInterfaces(encCfg.InterfaceRegistry). Otherwise, it does not how to decode the key. See the fix in 942df6e