Refactor documentation structure and add new specifications

- Updated MSH documentation to reflect changes in material, wear, and texture specifications.
- Introduced new `render.md` file detailing the render pipeline process.
- Removed outdated sections from `runtime-pipeline.md` and redirected to `render.md`.
- Added detailed specifications for `Texm` texture format and `WEAR` wear table.
- Updated navigation in `mkdocs.yml` to align with new documentation structure.

crates/msh-core/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "msh-core"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+nres = { path = "../nres" }