graphics/3d-ascii-viewer-c: Add new port

3d-ascii-viewer-c is a program written in C that allows users to view 3D
models in ASCII. It supports Wavefront .obj files and provides an
example usage capture.

The program can be executed by passing any of the models in the models
folder as an argument.

The available models include Fox and ShibaInu models, as well as Tree
models.

This program is inspired by the ASCII luminescence and offers an
intuitive way of viewing 3D models in ASCII.