Add support for GMod(source) types

[moriokii]

Please add support for angle, vector, etc. And make a small note in the README which types are supported. Thanks.
In util.TableToJSON it looks like this:
Angle:
{ "Angle":"{-0.0795 176.6814 -0.0385}" }
Vector:
{ "Vector": "[1 2 3]" }
Color:
{ "Color": { "r": 1.0, "b": 3.0, "a": 255.0, "g":2.0 } }

[moriokii]

Or encode all custom types with binary :)

[moriokii]

I'm not experienced developer, but I tried to implement serialization of Angle, Vector types in this commit: moriokii/gmsv_mongo@9a50784
I hope this will help in the future.

[Fedox-die-Ente]

I'm not experienced developer, but I tried to implement serialization of Angle, Vector types in this commit: moriokii/gmsv_mongo@9a50784
I hope this will help in the future.

This will help us, thanks.

We are still trying to automate it more so that we don't have to enter all the types manually