Add functions in recovery/minzip to libziparchive

Add two functions libziparchive that libminzip has. And create
corresponding unit tests.
1. Open a zip archive from a memory mapped region.
2. A new writer that takes a call back function pointer.
(Used by the OTA updater to stream the data.)

Test: Unit tests passed
Bug: 19472796
Change-Id: I2b2daec71174afe221030357e39bff5faea51e72