dmalloc API manual

The structure and style of this manual were heavily inspired by the Linux man pages online. In particular, some of its terms are directly referred to during documentation. When that happens, an explicit link is provided.

• API types: darena_t.
• API functions: darenainit,  darenadestroy,  dmalloc,  dfree,  dcalloc,  drealloc,  dreallocarray.