Case-sensitive enum type casts

[niklaskorz]

PR Info

• Closes postgres: CAST($2 AS CaseSensitiveEnumType) enum type must be enquoted sea-query#725
• Dependencies:
  • Case-sensitive enum type casts sea-query#789

Bug Fixes

• Filtering on enum fields whose type name was declared case sensitive no longer crashes

Breaking Changes

• Enum names are now case sensitive, i.e. #[sea_orm(enum_name = "MyType")] will result in "MyType" instead of mytype for PostgreSQL.

[niklaskorz]

Tests are only failing because they depend on SeaQL/sea-query#789