Avoid non documented exceptions in BinaryFormatter.Deserialize (dotnet/corefx#40215)

Avoid non documented exceptions in BinaryFormatter.Deserialize (dotnet/corefx#40215)

* dotnet/corefx#35491 Fixes issue with BinaryFormatter.Deserialize throwing other exceptions than those specified in the documentation (only supposed to throw SerializationException or SecurityException).

* Update UnitySerializationHolderTests to test the expected behaviour of BinaryFormatter.Deserialize. Fix naming error in SerializationGuardTests.

Commit migrated from https://github.com/dotnet/corefx/commit/1736bfa5f06d4d3a60742142f0aaf601bd4db788