fix enums could not be cast to decimal

[jogibear9988]

No description provided.

[StefH]

@jogibear9988
Thank you for this PR.

But in normal C#, this cast is not valid:

So what is the reason DynamicLinq should support this?

[jogibear9988]

I get a numeric value from Json, and I deserialize to Decimal, cause I don't want to lose decimal places.
And in my query string I compare against an enum. And I don't know the property type before parse.
In C# it is not valid, but in C# you always know the types, and you get a compiler error.
If it is not supported, I need to parse the string myself to get the type and then use dynamic linq

[jogibear9988]

could you create a new nuget?

[StefH]

I'll release it within a few days.

[StefH]

New version is pushed to NuGet, this will be available soon.