genericed graphic vector design

tools/StgSharp.GenerateGL/README.md

@@ -60,6 +60,7 @@ Generated files:
 
 - `glconst.cs`: core constants;
 - `OpenglContext.g.cs`: the function-pointer table with native names and ABI types;
+- `glContextShadow.g.cs`: an identically ordered `nint` table used while loading native entry points;
 - `OpenGLFunction.Base.g.cs`: APIs introduced through OpenGL 3.2 and retained in the target profile;
 - `OpenGLFunction.v3_3.g.cs` through `OpenGLFunction.v4_6.g.cs`: APIs introduced by each later core version.
 
@@ -112,6 +113,9 @@ Safe lexical normalization applies to all public methods:
 | `attribindex` | `attributeIndex` |
 | `bindingindex` | `bindingIndex` |
 | `relativeoffset` | `relativeOffset` |
+| `pname` | `pName` |
+| `xoffset` / `yoffset` / `zoffset` | `xOffset` / `yOffset` / `zOffset` |
+| `vaobj` | `vertexArray` |
 
 Families that represent distinct semantics receive explicit names:
 
@@ -154,4 +158,3 @@ The generator does not emit `<param>` or `<returns>` elements and does not copy
 - `Naming/`: C# identifier and semantic-family naming policies;
 - `XmlCli.cs`, `RegistryCli.cs`, and `FunctionFamilyCli.cs`: interactive inspection;
 - `GenerateCli.cs`: in-memory preview and protected directory output.
-