README Exercise Container Design
--------------------------------

Container.h    Rudimentary definition for class Container.

The given class Container is suited for containers having dynamically allocated,
array-like storage for the elements, and with a capacity possibly exceeding the
size (number of stored element). Data member start_ shall point to the start of
the storage, finish_ shall point to the past-last stored element position, and
end_of_storage_ shall point to past the last storage position. A typical
implementation for std::vector.