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Scattering delay networks plugin in Juce

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# Real-time-SDN
Scattering Delay Networks reverb plugin considering walls absorption.

## Exposed parameters
The plugin exposes the following parameters:
* Source level (dB)
* Source position (3 x 0-1 normalized values)
* Listener position (3 x 0-1 normalized values)
* Listener rotation (3 x 0-360 degrees)
* Output mode (mono, stereo, ACN Ambisonics 1st-5th order)
* Room dimensions (3 x 1-100 meters)
* Wall absorption coefficients (8 x 0-1 absorption coefficients per wall)
* Line-of-sight component (on/off)

## Main classes
* ```Room```: The main class representing the simulation 
* ```Node```: Parent class for all the moving objects in the simulation
* ```Source```: Implements the sound origin 
* ```Receiver```: Models the listener and communicates with the Microphone class
* ```Microphone```: virtual class used as a parent for all the classes implementing the supported output types
* ```ScatteringNode```: Characterizes the first-order reflection’s point of contact with the room walls. Also manages the filtering of the signal
* ```WaveGuide```: Controls the sound propagation in the system. It should be noted that the single instance of this class is mono-directional

## Other tech-specs
Some other info about the plugin:
* Y-up left-handed coordinates system
* Shoebox geometry
* Only one omnidirectional source and one listener
* Multi-channel inputs are treated as mono (input channels are summed up)

## Dependencies
* [JUCE](https://juce.com/)
* [Eigen](https://eigen.tuxfamily.org/)
* [BRT Library](https://github.com/GrupoDiana/BRTLibrary/tree/main) (optional)

## Build notes
The plugin version with HRTF processing requires the [BRT Library](https://github.com/GrupoDiana/BRTLibrary/tree/main) to be included. Additionaly, on Mac or Linux systems, the "mysofa.lib" and "zlibstatic.lib" files (provided by the BRT Library) must also be added as external libraries to link.

## Disclaimer

The Scattering delay networks alghoritm is patented in the United States, please make sure to use it following the proper regulations

## References

To cite this work:
> Fontana, M., Presti, G., Fantini, D., Avanzini, F., Reyes-Lecuona, A. (2024, September). A highly parametrized scattering delay network implementation for interactive room auralization. In proceedings of the 27-th Int. Conf. on Digital Audio Effects (DAFx24), pp. 286-293
```
@inproceedings{DAFx24_paper_34,
    author = "Fontana, Marco and Presti, Giorgio and Fantini, Davide and Avanzini, Federico and Reyes-Lecuona, Arcadio",
    title = "{A Highly Parametrized Scattering Delay Network Implementation for Interactive Room Auralization}",
    booktitle = "Proceedings of the 27-th Int. Conf. on Digital Audio Effects (DAFx24)",
    editor = "De Sena, E. and Mannall, J.",
    location = "Guildford, Surrey, UK",
    eventdate = "2024-09-03/2024-09-07",
    year = "2024",
    month = "Sept.",
    publisher = "",
    issn = "2413-6689",
    doi = "",
    pages = "286--293"
}
```
##
This work is based on the following publications:
> Fontana, M., Presti, G., Fantini, D., Avanzini, F., Reyes-Lecuona, A. (2024, September). A highly parametrized scattering delay network implementation for interactive room auralization. In proceedings of the 27-th Int. Conf. on Digital Audio Effects (DAFx24), pp. 286-293

> De Sena, E., Hacihabiboglu, H., & Cvetkovic, Z. (2011, February). Scattering delay network: An interactive reverberator for computer games. In Audio Engineering Society Conference: 41st International Conference: Audio for Games. Audio Engineering Society.

> De Sena, E., Hacιhabiboğlu, H., Cvetković, Z., & Smith, J. O. (2015). Efficient synthesis of room acoustics via scattering delay networks. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 23(9), 1478-1492.4

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