Support operations with sequences

In this release 4 operations were added:

• create_sequence
• rename_sequence
• change_sequence
• drop_sequence

v0.1.3

• Add support for rules (nepalez)
• Fix CI/CD flow (olleolleolle)
• Fix documentation (nepalez)

Fix registry of custom types

v0.1.2

Release v0.1.2

Fix inline docs for methods added to `ActiveRecord::Migration`

Merge pull request #1 from nepalez/chore/docs

Fix inline docs for methods added to ActiveRecord::Migration

The furst public release

Supported features:

• tables
• indexes (separated from tables)
• check constraints (separated from tables)
• foreign keys (including multi-column ones)
• views
• materialized views
• functions
• procedures
• triggers
• custom statistics
• enumerable types
• composite types
• domains types