BUG: Add float overloads for chdtr and chdtrc

Author: steppi

include/xsf/stats.h

@@ -25,8 +25,12 @@ inline double bdtrc(double k, int n, double p) { return cephes::bdtrc(k, n, p);
 
 inline double chdtr(double df, double x) { return cephes::chdtr(df, x); }
 
+inline float chdtr(float df, float x) { return static_cast<float>(cephes::chdtr(df, x)); }
+
 inline double chdtrc(double df, double x) { return cephes::chdtrc(df, x); }
 
+inline float chdtrc(float df, float x) { return static_cast<float>(cephes::chdtrc(df, x)); }
+
 inline double chdtri(double df, double y) { return cephes::chdtri(df, y); }
 
 inline double fdtr(double a, double b, double x) { return cephes::fdtr(a, b, x); }