Refactored CMakeLists.txt

* new pip_module() macro
 * fixed exports
 * automatic gather all exports and pass them to Doxygen and PICodeParser

lib/main/math/pistatistic.h

@@ -26,7 +26,7 @@
 #include "pimathbase.h"
 
 template <typename T>
-class PIP_EXPORT PIStatistic {
+class PIStatistic {
 public:
 	PIStatistic() {mean = variance = skewness = kurtosis = T();}