in native Rust for `U8`, `U8x2`, `U8x3` and `U8x4` images.
- Changed order of convolution passes for `U8`, `U8x2`, `U8x3` and `U8x4` images.
Now the vertical pass is the first and the horizontal pass is the second.
- **BREAKING**: Changed internal data type for `U8x4` structure. Not it is `[u8; 4]` instead of `u32`.
- All pixel types (`U8`, `U8x2`, ...) replaced by type aliases for new generic structure `Pixel`. Use method `new()` to create instance of one pixel.
- Added module `color` for working with colorspace and gamma.
- Struct `ImageView` replaced by enum `DynamicImageView`.
- Struct `ImageViewMut` replaced by enum `DynamicImageViewMut`.
- Trait `Pixel` changed:
- Associated type `ComponentsCount` renamed into `CountOfComponents`.
- Associated type `ComponentCountOfValues` renamed into `CountOfComponentValues`.
- Associated method `components_count` renamed into `count_of_components`.
- Associated method `component_count_of_values` renamed into `count_of_component_values`.
- Added generic structs `ImageView` and `ImageViewMut`.
- Added module `color` for working with colorspace and gamma.
- Added functions `change_type_of_pixel_components` and
`change_type_of_pixel_components_dyn` to change type of pixel's
components in whole image.
- Added generic trait `IntoPixelComponent<Out: PixelComponent>`.
### Example application
- Added option `--high_precision` to use `u16` as pixel components
for intermediate image representation.
- Added converting of source image into linear colorspace before it will be resized.
Destination image will be returned into original colorspace before it will be saved.
Kirill Kuzminykh