Do not store records generated properties

[yardee]

We got exception when serializing records

System.InvalidOperationException : Trying to serialize type RecordData and property EqualityContract does not have setter. If you don't want to serialize this property add [NotStored] attribute.
   at BTDB.EventStoreLayer.ObjectTypeDescriptor.CheckObjectTypeIsGoodDto(Type type, BindingFlags propertyBindingFlags) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/ObjectTypeDescriptor.cs:line 83
   at BTDB.EventStoreLayer.ObjectTypeDescriptor.FinishBuildFromType(ITypeDescriptorFactory factory) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/ObjectTypeDescriptor.cs:line 110
   at BTDB.EventStoreLayer.TypeSerializers.BuildFromTypeCtx.Create(Type type) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/TypeSerializers.cs:line 202
   at BTDB.EventStoreLayer.ObjectTypeDescriptor.FinishBuildFromType(ITypeDescriptorFactory factory) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/ObjectTypeDescriptor.cs:line 115
   at BTDB.EventStoreLayer.TypeSerializers.BuildFromTypeCtx.Create(Type type) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/TypeSerializers.cs:line 202
   at BTDB.EventStoreLayer.ListTypeDescriptor.FinishBuildFromType(ITypeDescriptorFactory factory) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/ListTypeDescriptor.cs:line 76
   at BTDB.EventStoreLayer.TypeSerializers.BuildFromTypeCtx.Create(Type type) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/TypeSerializers.cs:line 202
   at BTDB.EventStoreLayer.ObjectTypeDescriptor.FinishBuildFromType(ITypeDescriptorFactory factory) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/ObjectTypeDescriptor.cs:line 115
   at BTDB.EventStoreLayer.TypeSerializers.BuildFromTypeCtx.Create(Type type) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/TypeSerializers.cs:line 202
   at BTDB.EventStoreLayer.ObjectTypeDescriptor.FinishBuildFromType(ITypeDescriptorFactory factory) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/ObjectTypeDescriptor.cs:line 115
   at BTDB.EventStoreLayer.TypeSerializers.BuildFromTypeCtx.Create(Type type) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/TypeSerializers.cs:line 202
   at BTDB.EventStoreLayer.TypeSerializers.BuildFromType(Type type) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/TypeSerializers.cs:line 102
   at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
   at BTDB.EventStoreLayer.TypeSerializers.DescriptorOf(Type objType) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/TypeSerializers.cs:line 91
   at BTDB.EventStoreLayer.TypeSerializersMapping.StoreNewDescriptors(Object obj) in /Users/borisletocha/Research/BTDB/BTDB/EventStoreLayer/TypeSerializersMapping.cs:line 284
   at Gmc.Cloud.Infrastructure.Migration.Serializer.Serialize(MemWriter& writer, Object object)