Add a option to support games with 3d disabled

[beicause]

Project Type

2D

Feature Description

Currently this addon doesn't work with export template compiled with disable_3d=yes becase it depends on Camera3D. Users have to manually modify the source code to support 2d-only export template, which is Inconvenient.

Use Cases

For games using export template compiled with disable_3d=yes

(Optional) Proposed Solution

No response