* Add decldll to proto
* rework init to make it working for MSVC
* fix test_xprs_interface build
dotnet: Fix MSVC shared libs support
* Fix csproj to include libortools.dll
java: Fix MSVC shared_libs support
* Fix runtime jar to include libortools.dll
python: Fix MSVC shared_libs support
* fix __init__.py.in loading for MSVC
da058cd01b