feat(rendering): rendering textures with camera

Co-authored-by: BitSyndicate <contact@bitsyndicate.de>

src/model.rs

@@ -0,0 +1,14 @@
+use crate::texture::Texture;
+pub struct Material {
+    pub name: String,
+    pub diffuse_texture: Texture,
+    pub bind_group: wgpu::BindGroup,
+}
+
+pub struct Mesh {
+    pub name: String,
+    pub vertex_buffer: wgpu::Buffer,
+    pub index_buffer: wgpu::Buffer,
+    pub num_elements: u32,
+    pub material: usize,
+}