* Add unsharp mask func

* Add unsharp mask amount

* Add unsharp mask doc

* Add unsharp mask tests

* Add unsharp mask to README

* Fix tolerance range

* Remove unused const

* Conform formatting

* Inline pow func

* Adapt example to API changes

* util - added a Stack implementation
* paint - added a FloodFill function implementation

* Add simple translate function

* Add translate test

* Add translate example

* Add bechmarks

* Add Dilate and Erode tests

* Improve performance of sort

* Use edge extension instead of conditions in loop

* Add Benchmarks

* Reduce benchmark image size

* Simplify implementation

* Add basic rotation benchmarks

* Rename benchmark name

* Add Resize benchmarks

* Add supersampling exceptions

* Adjust bench angle for non special case

* Add integer math helpers

* Add cache blocking to rotate

* Add large image rotation bench

* Change cache size

* Optimize repeated calculation

* Roll back to no-cache version

* Fix tests

* Add doc and tests

* Cleanup

* Add convolve benchmarks

* Partially added Pad and Extend

* Implement padding methods

* Reduce allocations

* Improve performance of convolve function

* Add more image data

* Refactor convolve operation and fix output padding

* Re-enable parallel convolution

* Refactor convolve and execute functions

* Simplify implementation

* Add tests

* Add keep alpha

* Improve doc

* Fix alpha pos

* Improve tests

* Add basic rotation benchmarks

* Rename benchmark name

* Add Resize benchmarks

* Add supersampling exceptions

* Adjust bench angle for non special case

* Add integer math helpers

* Add cache blocking to rotate

* Add large image rotation bench

* Change cache size

* Optimize repeated calculation

* Roll back to no-cache version

* Fix tests

* Add doc and tests

* Cleanup

* Extract get neighbors operation

* Add Dilate and Erode functions

* Refactor and add doc

* Switch to radius based spatial filters

* Add dilate and erode to README

* Add partial implementation of shear

* Simplify shear implementation

* Add shear doc and rename params

* Refactor shear function into one func per axis

* Add shear to README

* Add shear tests

* Add convert RGB to and from HSV with tests

* Add saturation func

* Add hue function

* Rename Saturation param

* Fix Hue and Saturation function mappings

* Add lightness func

* Add RGBToHSL func

* Add HSL to RGB

* Refactor variable names

* Fix saturation return value

* Add doc

* Add HSL tests

* Add doc

* Add saturation and hue tests

* Add hue and saturation to README

* Add sepia effect

* Add sepia tests

* Add sepia to README

* Simplify sepia effect implementation

* Add basic noise function

* Add noise types

* Add doc to noise

* Refactor for readability

* Add noise tests

* Add noise examples to README

* Fix wrong noise image name