Fixes

[kbinani]

• Windows: Turn BUILD_SHARED_LIBS option ON when static=False
• Windows: Fix errors for Visual Studio 14:

error C2338: <hash_map> is deprecated and will be REMOVED. Please use <unordere
d_map>. You can define _SILENCE_STDEXT_HASH_DEPRECATION_WARNINGS to acknowledge
that you have received this warning.

• Macos, Linux: Fixes for the issue that settings.arch is ignored
• All: Build protobuf with zlib/1.2.8@lasote/stable
• All: Makes build process faster by using make -j or /MP
• All: Run tests with ConanMultiPacker

[memsharded]

Hi @kbinani ,

Thanks so much, your PR is really a fantastic job! I am really glad, you have done a lot of things, from OSX support, add conan-package-tools support, improved MVSC, added Zlib.... I have no words :)

I had the task to update this package pending, too much work lately, but thanks to your work, I think that tomorrow I will be able to setup CI and generate binaries ( I will also probably change the "static" option to "shared", as it is practically the one being used in most other packages).

Thanks again, cheers!