Rust HxA mesh parser

Description

This is a WIP parser for the mesh format specified by Eskil Steenberg.
Link to HxA GitHub

Features

• Loading HxA files into Rust structures
• Searching through HxA Rust structures to obtain data

Examples

To load a hxa file use the from() function and pass a filepath.
rust use hxa; let my_hxa = hxa::HXAFile::from("Cube.hxa");

You can parse this as is, or use the find functions to quickly obtain data: ```rust use hxa::conventions::{hard,soft};

let modelgeometry = myhxa.getfirstgeometry() .expect("Expected to find a geometry node").0;

let vertexstack = &modelgeometry.vertex_stack;

let vertexpositions = vertexstack .find(hard::BASEVERTEXLAYERNAME) .expect("Expected to find a vertex layer") .asvec_f32();

let vertexnormals = vertexstack .find(soft::LAYERNORMALS) .expect("Expected to find a normal layer") .asvec_f32(); ```

Missing features

• Several parsing types are not implemented, however the essental ones are.