[LAA] Brickworks 1.3.0 released

Hi all! We are glad to announce that we released version 1.3.0 of Brickworks, the music DSP toolkit that supplies you with the fundamental building blocks for creating and enhancing audio engines on any platform. Here's a short list of changes:  * Introduced fast time-invariant TDF-II IIR filters of first and second order (biquads) and new related examples.  * Now C++ API/implementations use BW_NULL instead of nullptr to support ancient C++ compilers.  * Improved build system for examples and updated related documentation.  * Fixed several small documentation typos. Consequently, we also updated Brickworks Pro algorithms to take advantage of the latest improvements. Brickworks is fully free/open source software (GPLv3 license) and we also offer commercial licenses. You can find more information on the official web page: https://www.orastron.com/algorithms#brickworks. Best regards, Stefano D'Angelo Orastron - https://www.orastron.com/