chore(test): add performance tools

[nevermarine]

Description

Add more tools for performance tests:

• statistis — It saves statistics for VirtualMachines and VirtualDisks created during the test.
• evicter — A tool that continuously create VMOPs to run VirtualMachine migrations.

Also:

• Fix queries in dashboard.
• Refactor directory structure and values.yaml.
• Add README.

Why do we need it, and what problem does it solve?

What is the expected result?

Checklist

• The code is covered by unit tests.
• e2e tests passed.
• Documentation updated according to the changes.
• Changes were tested in the Kubernetes cluster manually.

Changelog entries

section: module
type: chore
summary: add tools for performance tests
impact_level: low

Summary by Sourcery

Introduce performance tooling by adding metric collection and continuous migration CLI tools, refactor the performance Helm chart and templates for VMs and disks, enhance the Grafana dashboard, and update test imports and Taskfiles accordingly

New Features:

• Add a CLI tool for VM and VD performance metrics collection and CSV export
• Add a continuous VM migration tool (“evicter”) to drive migrations at a target percentage over a specified duration

Enhancements:

• Refactor performance chart values and templates to support structured resources (vm, vd, vi), run policies, and conditional services
• Enhance Grafana dashboard YAML to filter by namespace, adjust panel defaults, and add VirtualDisks panels
• Simplify bootstrapper.sh by improving logging and removing manual kubectl wait logic

Documentation:

• Add README for the performance Helm chart explaining resources configuration

Tests:

• Update e2e tests to correctly import authentication plugins and Ginkgo/Gomega after framework imports
• Adjust golangci-lint configuration and fix test import orders

Chores:

• Add Taskfile tasks for running statistics and migration tools
• Add Taskfiles and Go modules for the new performance and migration tools