Asset release

Prevent use of internal camera variable if no camera in scene.

Updated screendumps.

Full Changelog: v2.1.1...v2.1.2

Reoganized the file and added plugin

Plugin added for support of easy selecting the GlowBorderEffectObject.
Moved effect internal files into an internal folder so that the scene glow_border_effect_renderer.tscn and the script glow_border_effect_object.gd is easy to locate without the internal clutter.

v2.1.0

Optimalized the effect to remove one shader pass.

Godot 4.x release

Ported the shader effect to Godot 4.0.

First release

Initial release of the Glow Border Effect Renderer