The version of MinGW we use doesn't have nrand48() which is really lame,
but we need to use libutils in the Windows SDK.
Change-Id: If854c03dbf02bc29e79f49e4539f08c2bf057517
This change adds an implementation of a cache that stores key/value
pairs of unstructured binary blobs.
Change-Id: Idd01fdabedfa3aed6d359a6efb0592967af52651