fix(RHI): 添加 OpenGL 源文件到 CMakeLists 并修复编译错误

- 添加 OpenGL RHI 所有源文件到 engine/CMakeLists.txt
- 修复 OpenGLPipelineState 结构体重定义问题
- 修复 BufferDesc/TextureDesc/ShaderCompileDesc API 不匹配
- 添加 OpenGLShader 缺少的基类纯虚函数实现
- 修复 HashMap 迭代器支持和 ResourceManager API 调用

engine/src/RHI/OpenGL/OpenGLPipelineState.cpp

@@ -100,15 +100,15 @@ OpenGLPipelineState::OpenGLPipelineState()
 OpenGLPipelineState::~OpenGLPipelineState() {
 }
 
-void OpenGLPipelineState::SetDepthStencilState(const DepthStencilState& state) {
+void OpenGLPipelineState::SetDepthStencilState(const OpenGLDepthStencilState& state) {
     m_depthStencilState = state;
 }
 
-void OpenGLPipelineState::SetBlendState(const BlendState& state) {
+void OpenGLPipelineState::SetBlendState(const OpenGLBlendState& state) {
     m_blendState = state;
 }
 
-void OpenGLPipelineState::SetRasterizerState(const RasterizerState& state) {
+void OpenGLPipelineState::SetRasterizerState(const OpenGLRasterizerState& state) {
     m_rasterizerState = state;
 }