Init the godot project

- Add a first-view controller and a bunch of things
- First shooting implementation
- Remove heavy models and clean the project up

shaders/outline.gdshader

@@ -0,0 +1,23 @@
+shader_type spatial;
+render_mode cull_front, unshaded;
+
+uniform vec4 outline_color : source_color;
+uniform float outline_width = 1.0;
+
+void vertex() {
+	vec4 clip_position = PROJECTION_MATRIX * (MODELVIEW_MATRIX * vec4(VERTEX, 1.0));
+	vec3 clip_normal = mat3(PROJECTION_MATRIX) * (mat3(MODELVIEW_MATRIX) * NORMAL);
+
+	vec2 offset = normalize(clip_normal.xy) / VIEWPORT_SIZE * clip_position.w * outline_width * 2.0;
+
+	clip_position.xy += offset;
+
+	POSITION = clip_position;
+}
+
+void fragment() {
+	ALBEDO = outline_color.rgb;
+	if (outline_color.a < 1.0) {
+		ALPHA = outline_color.a;
+	}
+}