Android Windows missing zip fix

Fixes #2997

Adds a `windows/` folder to
`libs/openFrameworksCompiled/project/android/`
Which includes the required files for
http://gnuwin32.sourceforge.net/packages/zip.htm
- zip.exe
- bzip2.dll
- zip32z64.dll

Modifications have been made to `config.android.default.mk` for windows
to point to the zip in the directory to compress the resources.

- Tested on Windows 7 with master / Eclipse
- Tested on OSX / Eclipse