Imported Healpix, cfitsio, cosmotool. Added cmake tool to build dependencies (cfitsio, hdf5, netcdf, boost, healpix, gsl, ..). Adjusted CMakeLists.txt

external/cosmotool/src/mach.hpp

@@ -0,0 +1,20 @@
+#ifndef __COSMO_MACHINE_TEST_HPP
+#define __COSMO_MACHINE_TEST_HPP
+
+#include <iostream>
+
+template<typename T>
+T mach_epsilon()
+{
+  T eps = (T)1;
+
+  do
+    {
+      eps /= 2;
+    }
+  while ((T)(1 + (eps/2)) != (T)1);
+
+  return eps;
+}
+
+#endif