v15.1.0

Add Vulkan-accelerated DSD decode path; bump to v15.1.0

v15.0.0

• Fixed multithreading issues present on the original release of mansr/sox
• Added support for the following formats: eac3,aac,opus,xhe-aac,alac,truehd,mlp,dts,dtshd
• Added the option to specify fir filters for each audio channel
• Added the option to concatenate multiple fir filters
• Added gpu offload with Vulkan for the rate and FIR effects. With different profiles based on the quality vs speed required.
• Added experimental SDM modulator on GPU via Vulkan. Viable only for >= DSD256
• Other minor bug fixes

Static binaries

Fix Windows build issues

- Add CMake build system files
- Add FPM_64BIT definition for libmad on x64 (avoids x86 asm errors)
- Fix math library linking on Windows
- Update .gitignore to allow CMakeLists.txt files