Drop CvModule and cvSetMemoryManager
Move C structures wrappers from core.hpp to core_c.h

Also move RTTIImpl class to the only usage
Move C++ basic structures to separate header and inverse dependency from C API

cv::Complex, cv::Point_ and cv::Point3_ are moved.
Move cv::Size_
Move cv::Rect_
Move cv::RotatedRect
Move cv::Range, cv::KeyPoint and cv::DMatch