SQLike version 2

[si3nloong]

After 2 years in production, it's time to evolve this library by introducing required API changes.

• Refactor folder name
• Rework sqlike.SessionContext in RunInTransaction API
• Rework DataType interface
• Support multiple tag keys on struct reflection
• Improve performance
• Drop custom type types.Date, support with civil.Date instead
• Support multi-valued indexes
• Support foreign key
• Warn users when they're using MySQL 5.7
• Rework encoder, driver.Valuer not allow to pass Spatial nor JSON value, eg : (ST_GeomFromText('POINT(1 1)'))
• Rework Lock API, since mysql 8.0 support skip lock
• Support JOIN clause, including LEFT JOIN, INNER JOIN
• Documentation for v1 migration
• Rework Pagination
• Support Generic (go v1.18)