v0.1.0: Added Windows support in the dub.json

This release fixes the dub.json to correctly work on Windows with releases downloaded from Github.
Notably, the releases include a binary named libsodium.lib instead of the usual sodium.lib, which would lead to compilation error with dub.
This relies on the right libsodium.lib being available to the linker, for example in a path provided in LIB.
And example on how to do this can be found in the newly added Github workflow.
Note that DMD support isn't checked by the CI, only LDC.