Move osmoassert into osmoutils, remove osmoutils twap dependence (backport #3817)

[mergify]

This is an automatic backport of pull request #3817 done by Mergify.
Cherry-pick of 4f04e73 has failed:

On branch mergify/bp/v13.x/pr-3817
Your branch is up to date with 'origin/v13.x'.

You are currently cherry-picking commit 4f04e735.
  (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:
	modified:   osmoutils/module_account_test.go
	renamed:    app/apptesting/osmoassert/assertions.go -> osmoutils/osmoassert/assertions.go
	modified:   osmoutils/store_helper_test.go
	modified:   tests/e2e/e2e_test.go
	modified:   x/gamm/keeper/pool_service_test.go
	modified:   x/gamm/pool-models/balancer/pool_suite_test.go
	modified:   x/gamm/pool-models/balancer/pool_test.go
	modified:   x/gamm/pool-models/stableswap/amm_test.go
	modified:   x/gamm/pool-models/stableswap/pool_test.go
	modified:   x/mint/keeper/genesis_test.go
	modified:   x/mint/keeper/hooks_test.go
	modified:   x/mint/keeper/keeper_test.go
	modified:   x/twap/keeper_test.go
	modified:   x/twap/types/utils_test.go

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	both modified:   CHANGELOG.md
	both modified:   x/twap/logic_test.go
	deleted by us:   x/twap/strategy_test.go

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

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