v1.5

A few new shaders and some general clean up. Thought it was as good a time as any to create a release. There is a Win64 installer. I don't currently have a Mac to create Apple installs.

• SimpleShaderView-Win64.exe sha1 8adc7cd218ff88bc0fbcbdc0c93b0bb5a593103c
• SkiaSimpleShader-Win32.zip - sha1 df8d5f547f14234852b538da9d52662329d52e38
• SkiaSimpleShader-Linux64.zip sha1 f2daa13bc5831fbc43ebf04f545e40d6f8803038

EXE's and installers aren't currently signed.