Allow drag/drop textures in editor (Untested)

[NoahGWood]

May need to rework the ImGuiPayload creation, adapted from: https://github.com/NoahGWood/VersaMachina/blob/main/VersaEditor/src/EditorLayer.cpp

Describe the issue (if no issue has been made)

People generally expect to be able to drag/drop items from the content pane into the viewport and onto game objects.

PR impact

List of related issues/PRs this will solve:

Impact	Issue/PR
Issues this solves	None
Other PRs this solves	#487

Proposed fix

Check if texture file has been dropped on sprite component in the editor & set the texture

Additional context

Tasks to validate:

• Build Hazelnut
• Start Hazelnut
• Add entity to scene
• Add SpriteRendererComponent to entity
• Drag & drop a texture (.png file) from the content browser panel into an empty space on viewport
• Drag & drop a texture (.png file) from the content browser panel onto the quad in the viewport

[VagueLobster]

Sorry, but there already is a pull request on the very same topic: https://github.com/TheCherno/Hazel/pull/487/files#diff-075edf150e3610e06dc7477cd660bd51a62dd452ddc920dc500d41adafda1689

[NoahGWood]

Sorry, but there already is a pull request on the very same topic: https://github.com/TheCherno/Hazel/pull/487/files#diff-075edf150e3610e06dc7477cd660bd51a62dd452ddc920dc500d41adafda1689

Ah, didn't see that, I'll update my PR to reflect that