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Add LEAF_generate_table_skew_non_sym

--- a/leaf/Inc/leaf-math.h

+++ b/leaf/Inc/leaf-math.h

@@ -175,7 +175,7 @@

     //0.001 base gives a good curve that goes from 1 to near zero

     //1000 gives a good curve from -1.0 to 0.0

     void LEAF_generate_exp(float* buffer, float base, float start, float end, float offset, int size);

-

+    void LEAF_generate_table_skew_non_sym(float* buffer, float start, float end, float center, int size);

     void LEAF_generate_atodb(float* buffer, int size);

     void LEAF_generate_atodbPositiveClipped(float* buffer, float lowerThreshold, float range, int size);

--- a/leaf/Src/leaf-math.c

+++ b/leaf/Src/leaf-math.c

@@ -565,6 +565,22 @@

     }

 }

+//0.001 base gives a good curve that goes from 1 to near zero

+void LEAF_generate_table_skew_non_sym(float* buffer, float start, float end, float center, int size)

+{

+    float skew = logf (0.5f) / logf ((center - start) / (end - start));

+    float increment = (end - start) / (float)size;

+    float x = start;

+    float proportion = 0;

+    for (int i = 0; i < size; i++)

+    {

+        proportion = expf (logf (x) / skew);

+        buffer[i] = start + (end - start) * proportion;

+        x += increment;

+    }

+}

+

+

 void LEAF_generate_atodb(float* buffer, int size)

 {

     float increment = 1.0f / (float)size;