Plenopticam

- first integration of a basic viewer
- better circle loop calculation via Bresenham's method
- major bug fixes:
- meta data path handling
- contrast automation
- minor fixes that improve general program stability

- fix color settings
- improve robustness for micro-image mismatch
- enable continuous integration

- major enhancements in color management
- improved stability through fix in micro image size mismatch
- make color equalization external package and import it
- simplified UI for scheimpflug rendering
- faster and more effective hot pixel correction
- suppression of imageio lib warnings
- bayer image for raw data export from Lytro images
- installer distribution packaging

- improved color handling
- more descriptive CLI feedback
- improved status handling via "canceling" message
- imageio replacing libtiff
- general bug fixes improving stability

The 0.1.4 release contains the following new features:

- channel-wise histogram stretching for automatic white balance and automatic saturation
- histogram matching for contrast automation
- introduction of de-vignetting to counter-act cosine terms in light-field
- fixes in stop button handling
- installation via pip
- further general bug fixes that improve overall stability