使用 << 操作符创建 Pipleine

[FuXiii]

相对完整流程：

Shader* vert_shader = ...;
Shader* frag_shader = ...;

PipelineLayout::Layout layout;
layout << (*vert_shader) << (*frag_shader) << other...;

Pipeline::CreateInfo create_info = {};
create_info << (*vert_shader) << (*frag_shader) << layout << other...;

Pipeline* pipeline = new Pipeline()

按照自动解析推导结果流程：

Shader* vert_shader = ...;
Shader* frag_shader = ...;

PushConstantsOffsets offsets;
offsets.Merge(VERTEX_SHADER, 0);
offsets.Merge(FRAGMENT_SHADER, 16);

Pipeline::CreateInfo create_info = {};
create_info << (*vert_shader) << (*frag_shader) << offsets << other...;

Pipeline* pipeline = new Pipeline()