Graphics: Move LightData to a shader module and add hotreload in debug

src/Nazara/Graphics/Resources/Shaders/Modules/Engine/LightData.nzsl

@@ -0,0 +1,25 @@
+[nzsl_version("1.0")]
+module;
+
+option MaxLightCount: u32 = u32(3); //< FIXME: Fix integral value types
+
+[export]
+[layout(std140)]
+struct Light
+{
+	type: i32,
+	color: vec4[f32],
+	factor: vec2[f32],
+	parameter1: vec4[f32],
+	parameter2: vec4[f32],
+	parameter3: vec4[f32],
+	hasShadowMapping: u32
+}
+
+[export]
+[layout(std140)]
+struct LightData
+{
+	lights: array[Light, MaxLightCount],
+	lightCount: u32,
+}

src/Nazara/Graphics/Resources/Shaders/phong_material.nzsl

@@ -2,6 +2,7 @@
 module;
 
 import Engine/InstanceData;
+import Engine/LightData;
 import Engine/ViewerData;
 
 // Basic material options
@@ -15,8 +16,6 @@ option HasHeightTexture: bool = false;
 option HasNormalTexture: bool = false;
 option HasSpecularTexture: bool = false;
 
-option MaxLightCount: u32 = u32(3); //< FIXME: Fix integral value types
-
 // Billboard related options
 option Billboard: bool = false;
 option BillboardCenterLocation: i32 = -1;
@@ -55,25 +54,6 @@ const DirectionalLight = 0;
 const PointLight = 1;
 const SpotLight = 2;
 
-[layout(std140)]
-struct Light
-{
-	type: i32,
-	color: vec4[f32],
-	factor: vec2[f32],
-	parameter1: vec4[f32],
-	parameter2: vec4[f32],
-	parameter3: vec4[f32],
-	hasShadowMapping: u32
-}
-
-[layout(std140)]
-struct LightData
-{
-	lights: array[Light, MaxLightCount],
-	lightCount: u32,
-}
-
 external
 {
 	[binding(0)] settings: uniform[MaterialSettings],