bug: tests in change-analysis-models failing

[BryanPan342]

This e44c28f introduced a breaking change in the codebase.

The problem is the constructor of model entity:

awscdk-change-analyzer/packages/change-analysis-models/infra-model/model-entity.ts

Lines 20 to 23 in 6d5d575

	constructor(entityType: string, nodeData: fn.InVertex<ND>, outgoingNodeReferences: OR){
	this.nodeData = {_entityType: entityType, _id: `${++ModelEntity.idCounter}`, ...nodeData};
	this.outgoingNodeReferences = outgoingNodeReferences;
	}

and the deserializer, which creates a new Model Entity. The static increment in the constructor makes the _id's to appear differently.

Fix:

• Bind id later
• Have a simple check to see if there is a _id in the NodeData (requires refactoring for EACH deserializer to pass down _id)