[feature] Improve E2E test framework.

[runkecheng]

Is your feature request related to a problem? Please describe.

• Basic framework, including automatic creation, cleanup API.
• MySQLCluster related API.
• Automatically prepare data/run test through Sysbench.
• Chaosmesh related API.
• CI.

Test cases:

• HA
• Upgrade
• Scale
• Chaos(net, kill, io...)
• Backup
• User

Describe the solution you'd like

Describe alternatives you've considered

Additional context