ZhengyuDiao

Now I directly do a memory copy of the whole vertex buffer from assimp, but the triangle in assimp is stored as a struct and can not use memcpy to...

Now the other files io in tensor module use `double` as default, so the tests of io also use `double` as default. If I use `float` as default in FileTXT,...

I guess dataset_mead.json is dataset.json in eg3d. dataset_exp.json may store exp mat in flame