Since 0.7.1
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- Changed return type of `DynamicCollection` constructors
- Implemented `FieldEq` for any single column `Option<T>`
- Implemented `FieldLike` for `String` and `MaxStr`
- Implemented `FieldLike` for any single column `Option<T>`
- Added `ForeignModelByField::query_as`
- Added `ForeignModelByField::as_condition`
- Added `ForeignModelByField::into_condition`
- Added `MaxStr::from_static`
- Added `MaxStr::to_owned`
- Added `contains`, `starts_with` and `ends_with` using `like`
- Enforced column names to be at most 63 bytes
- Deprecated `impl_FieldEq!` macro for `SimpleFieldEq` trait
- Fixed / improved some field lints

Notes for publishing
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- don't forget to bump and publish rorm-macro!
