The idea is not fill the memory on the computer running a native instance and to be able to test on hardware. The test application is reworked similarly as the memarray test application. Macro are now overridable and printed at the beginnined of the test: this allows easier automatic testing
- make local functions / variables static
- adhere to the 80 column limit
- don't increment total if head could not be allocated
- allow to overwrite CHUNK_SIZE
If the memory is exhausted during the allocation of the new `head` structure, subsequent accesses to `head` will result in dereferencing of a NULL pointer.
