First commit: flag registers and imgui example code (stolen from gh)

snes-frontend/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "snes-frontend"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+winit = "0.26.1"
+imgui = "0.8.2"
+wgpu = "0.12.0"
+imgui-wgpu = "0.19.0"
+pollster = "0.2.5"
+[dependencies.imgui-winit-support]
+version = "0.8.2"
+features = ["winit-26"]
+default-features = false