simple logging simultaneous to file and screen using basic macros LOGI, LOGD, LOGV, LOGW, LOG and LOGF
npm install teeloggingCoverage: 
gcc 4.9 / clang 3.6: 
MSVC 2015: 
```CPP
#include
...
{
LOGI("info level");
int n = 10;
LOGE("error %d with printf style", n);
}
´´´