refactor: remove viper as a direct dependency (backport #21635)

[mergify]

Description

This fell out as part of the v2 integration test work. It is desirable to interact with config through an abstraction rather than viper specifically.

Specifically, this PR introduces core/server.DynamicConfig to interface with runtime config instead of viper, analogous to server v1 AppOptions. This completely removes viper from runtime/v2/go.mod, and moves viper to an indirect (from direct) dependency in x/genutil and x/upgrade.

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• included the necessary unit and integration tests

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Summary by CodeRabbit

• New Features

  • Introduced a dynamic configuration management system for enhanced flexibility in runtime settings.
  • Added functionality for setting store options in the application builder.

• Bug Fixes

  • Improved error handling and type safety in command functions.

• Refactor

  • Reorganized import paths and package structures for better clarity and maintainability.
  • Streamlined configuration handling by removing dependencies on the Viper library.

• Chores

  • Updated dependency management to reference local modules for development and testing.
  • Added a new logging library for improved performance and structured logging capabilities.

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This is an automatic backport of pull request #21635 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 57f35dc has failed:

On branch mergify/bp/release/v0.52.x/pr-21635
Your branch is up to date with 'origin/release/v0.52.x'.

You are currently cherry-picking commit 57f35dcdf.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	new file:   core/server/config.go
	modified:   simapp/simd/cmd/testnet_test.go
	modified:   simapp/v2/app_di.go
	modified:   simapp/v2/simdv2/cmd/commands.go
	modified:   simapp/v2/simdv2/cmd/root_di.go
	modified:   tests/e2e/genutil/export_test.go
	renamed:    x/genutil/client/cli/export_test.go -> tests/integration/genutil/export_test.go
	renamed:    x/genutil/client/cli/genaccount_test.go -> tests/integration/genutil/genaccount_test.go
	renamed:    x/genutil/client/cli/init_test.go -> tests/integration/genutil/init_test.go
	modified:   testutil/network/util.go
	renamed:    x/genutil/client/testutil/helpers.go -> testutil/x/genutil/helper.go
	modified:   x/auth/tx/config/depinject.go
	modified:   x/genutil/v2/cli/commands.go
	modified:   x/genutil/v2/cli/export.go
	modified:   x/genutil/v2/types.go
	modified:   x/upgrade/depinject.go

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	both modified:   go.mod
	both modified:   go.sum
	deleted by us:   runtime/v2/builder.go
	deleted by us:   runtime/v2/go.mod
	deleted by us:   runtime/v2/go.sum
	deleted by us:   runtime/v2/module.go
	both modified:   simapp/go.mod
	both modified:   simapp/go.sum
	both modified:   simapp/v2/go.mod
	both modified:   simapp/v2/go.sum
	both modified:   tests/go.mod
	both modified:   tests/go.sum
	both modified:   x/upgrade/go.mod
	both modified:   x/upgrade/go.sum

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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