[suggestion] Allow for splitting exportation templates into DLLs

[rossbridger]

Tested versions

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System information

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Issue description

Current Godot/Redot export templates comprised of monolithic binary containing all the functionalities, including the ones unneeded for the game (e.g. 3D components in a 2D-only game). To explicitly remove the redundant components, one has to recompile the source code, which is slow and not always working when attempting cross platform compilation.

Therefore, the proposal is to allow split godot binary into dlls in a similar fashion as gdextensions, so that users can enable/disable exporting them on project settings. This way we can:

• Reduce the size of exported game without recompiling the engine.
• Allow disabling GDScript/C# if they are not used in the project and allow for more language bindings to be added into the source tree.
• Allow the inclusion of functionalities that not every project needs but nonetheless important enough to deserve official support, such as a terrain system.

Steps to reproduce

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Minimal reproduction project (MRP)

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[Spartan322]

GDExtensions are intended to service in practically being dynamically linked Godot modules already, it however still requires work for some modules to be able to support GDExtensions, a task list for whats needed to make GDExtensions fully support modules as is should probably be built.