gitian: Make windows dependencies outputs fully deterministic

Sort .zip order, and other small determinism changes to make sure builds are repeatable for windows deps. These changes are just to get the intermediate outputs deterministic. There should be no resulting changes to the end product so the version numbers were not bumped.

Boost windows:

    60dc2d3b61e9c7d5dbe2f90d5955772ad748a47918ff2d8b74e8db9b1b91c909  boost-win32-1.55.0-gitian-r6.zip
    f65fcaf346bc7b73bc8db3a8614f4f6bee2f61fcbe495e9881133a7c2612a167  boost-win64-1.55.0-gitian-r6.zip

Deps windows:

    0ba0855e1084132d05fd8687c19d8430b91f6c410a9ab7938e4fea650c2b22c8  bitcoin-deps-win32-gitian-r10.zip
    5f9ffba0c13ddefc1d339f66ab973ea64623c9cc1f9078cb2b145bce86bd28e2  bitcoin-deps-win64-gitian-r10.zip

Protobuf windows:

    0fd5750d740ec0086b7af65375d55904c5b7aad048271c4b6ad3569ea46fc4d7  protobuf-win32-2.5.0-gitian-r4.zip
    16d7857d06265c409f1770b4d86b8c8ebc325b3760987490039faa9284b7ae2e  protobuf-win64-2.5.0-gitian-r4.zip

Qt windows:

    963e3e5e85879010a91143c90a711a5d1d5aba992e38672cdf7b54e42c56b2f1  qt-win32-5.2.0-gitian-r2.zip
    751c579830d173ef3e6f194e83d18b92ebef6df03289db13ab77a52b6bc86ef0  qt-win64-5.2.0-gitian-r2.zip