Refactoring Rendering backend

Ghost.Shader/ShaderSyntax.cs

@@ -0,0 +1,44 @@
+namespace Ghost.Shader;
+
+public class FunctionCall
+{
+    public Token name;
+    public List<Token> arguments = new();
+}
+
+public class PropertySyntax
+{
+    public Token type;
+    public Token name;
+    public FunctionCall? propertyConstructor;
+}
+
+public class PipelineStateSyntax
+{
+    public Token zTest;
+    public Token zWrite;
+    public Token cull;
+    public Token blend;
+    public Token colorMask;
+}
+
+public class ShaderPassSyntax
+{
+    public Token name;
+    public Token vertexShader;
+    public Token vertexEntry;
+    public Token pixelShader;
+    public Token pixelEntry;
+    public List<string>? defines;
+    public List<string>? includes;
+    public List<FunctionCall>? keywords;
+    public PipelineStateSyntax? overridePipeline;
+}
+
+public class ShaderSyntax
+{
+    public Token name;
+    public List<PropertySyntax> properties = new();
+    public PipelineStateSyntax pipeline = new();
+    public List<ShaderPassSyntax> passes = new();
+}