Added shader packs

tools/packsrc/Blueprint/shaders/Buffer A.frag

@@ -0,0 +1,8 @@
+// the purpose of this buffer is too smooth out the sudden changes in the fft
+void mainImage( out vec4 fragColor, in vec2 fragCoord )
+{
+    vec2 uv = fragCoord.xy / iResolution.xy;
+    float old = texture(iChannel1, uv).x;
+    float new = texture(iChannel0, uv).x;
+    fragColor = vec4(mix(old, new, new > old ? .4 : .04));
+}