Move txmgr in evm package

[dimriou]

In order to degeneralize the TXM, first we have to degeneralize txmgr.go and move it under evm package so we can slowly rollout each subcomponent separately. Since generalized and non-generalized subcomponents are mixed at the moment, we have to keep generics for the time being and remove them as we degeneralize each subcomponent.

[github-actions[bot]]

I see you updated files related to core. Please run pnpm changeset in the root directory to add a changeset as well as in the text include at least one of the following tags:

• #added For any new functionality added.
• #breaking_change For any functionality that requires manual action for the node to boot.
• #bugfix For bug fixes.
• #changed For any change to the existing functionality.
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• #deprecation_notice For any upcoming deprecation functionality.
• #internal For changesets that need to be excluded from the final changelog.
• #nops For any feature that is NOP facing and needs to be in the official Release Notes for the release.
• #removed For any functionality/config that is removed.
• #updated For any functionality that is updated.
• #wip For any change that is not ready yet and external communication about it should be held off till it is feature complete.

[cl-sonarqube-production[bot]]

Quality Gate failed

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C Reliability Rating on New Code (required ≥ A)

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[github-actions[bot]]

This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days.

[github-actions[bot]]

This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days.