Serialiser_Engine: Infinite looping for upgrader possible

[IsakNaslundBh]

Description:

Currently possible to end up in an infinite upgrade loop for objects for the case that an object has been upgraded in a faulty way with custom upgrader, giving back an invalid type name in the ["_t"] property. This is due to missing to check if the type already has been upgraded or not in

BHoM_Engine/Serialiser_Engine/Compute/Deserialise.cs

Lines 73 to 74 in 9328cf1

	if (type == null)
	return DeserialiseDeprecate(doc, ref failed, version) as IObject;

Steps to reproduce:

Make an upgrader for an object, setting a faulty type name in ["_t"]

Expected behaviour:

For this to be properly catched. Suggesting adding IsUIpgraded boolean to be passed to DeserialiseDeprecate