Updated .gitignore in order to include NuGet packages in the source control repository.
Updated .gitignore in order to include NuGet packages in the source control repository.

sergeyshushlyapin/AutoFixture,hackle/AutoFixture,zvirja/AutoFixture,AutoFixture/AutoFixture,olegsych/AutoFixture,sergeyshushlyapin/AutoFixture,dlongest/AutoFixture,yuva2achieve/AutoFixture,olegsych/AutoFixture,mrinaldi/AutoFixture,amarant/AutoFixture,sbrockway/AutoFixture,hackle/AutoFixture,amarant/AutoFixture,dcastro/AutoFixture,Pvlerick/AutoFixture,yuva2achieve/AutoFixture,dlongest/AutoFixture,mrinaldi/AutoFixture,dcastro/AutoFixture,adamchester/AutoFixture,sbrockway/AutoFixture,sean-gilliam/AutoFixture,StevenJiang2015/AutoFixture,StevenJiang2015/AutoFixture,adamchester/AutoFixture