feat: dependencies option for module create

[lumtis]

Add a --dep option for the module create command. This option allows to provide a comma-separated list of module name that will be dependencies of the module to scaffold.

• The module will contain instances of the dep keepers in its keeper
• The module will have this additional argument in its contructor
• A file expected_keepers.go with interfaces will be created as the current standard with Cosmos SDK

The scaffolder will add the keeper instance in app.go with the form app.[DependencyName]Keeper if this value is not present in app.go we will have the same behavior as when there is a missing placeholder in app.go: app.go will be left untouched but the module will still be scaffolded.
The module will then not be registered in app.go but it will be scaffolded with the dependencies in its keeper

Small issue with previously scaffolded app if using gov dependency: #818 (comment)

One way to test:

// Create an app
starport scaffold chain github.com/lubtd/venus
cd venus

// Create a module with an internal list
starport module create haha
starport type foo bar --no-message --module haha

// Create another module that depends on the previous one and add a message
starport module create hehe --dep haha
starport message create-foo bar --module hehe

Then add AppendFoo(ctx sdk.Context, foo types.Foo) uint64 in expected_keepers.go in hehe/keeper
Then add k.hahaKeeper.AppendFoo(ctx, hahamoduletypes.Foo{Bar:msg.Bar}) in the handler of the create-foo message of hehe

Finally, strings can be added from module hehe venusd tx hehe create-foo hello --from alice into the list of the haha module venusd q haha list-foo

[fadeev]

👍

[ilgooz]

Nice addition! 🍰

[ilgooz]

👍