add circle2d collider renderer, fixed a bug for renderer 2 value properties

Editor/assets/shaders/Renderer2D_Circle.glsl

@@ -0,0 +1,44 @@
+// Basic Texture Shader
+
+#type vertex
+#version 430 core
+
+layout(location = 0) in vec3 a_WorldPosition;
+layout(location = 1) in float a_Thickness;
+layout(location = 2) in vec2 a_LocalPosition;
+layout(location = 3) in vec4 a_Color;
+uniform mat4 u_ViewProjection;
+
+out vec2 v_LocalPosition;
+out float v_Thickness;
+out vec4 v_Color;
+
+void main()
+{
+	v_LocalPosition = a_LocalPosition;
+	v_Thickness = a_Thickness;
+	v_Color = a_Color;
+	gl_Position = u_ViewProjection * vec4(a_WorldPosition, 1.0);
+}
+
+#type fragment
+#version 430 core
+
+layout(location = 0) out vec4 color;
+
+in vec2 v_LocalPosition;
+in float v_Thickness;
+in vec4 v_Color;
+
+void main()
+{
+	float fade = 0.01;
+	float dist = sqrt(dot(v_LocalPosition, v_LocalPosition));
+	if (dist > 1.0 || dist < 1.0 - v_Thickness - fade)
+		discard;
+
+	float alpha = 1.0 - smoothstep(1.0f - fade, 1.0f, dist);
+	alpha *= smoothstep(1.0 - v_Thickness - fade, 1.0 - v_Thickness, dist);
+	color = v_Color;
+	color.a = alpha;
+}