Move all crates into a crates directory (#1940)

crates/egui_demo_lib/Cargo.toml

@@ -0,0 +1,53 @@
+[package]
+name = "egui_demo_lib"
+version = "0.18.0"
+authors = ["Emil Ernerfeldt <emil.ernerfeldt@gmail.com>"]
+description = "Example library for egui"
+edition = "2021"
+rust-version = "1.61"
+homepage = "https://github.com/emilk/egui/tree/master/egui_demo_lib"
+license = "MIT OR Apache-2.0"
+readme = "README.md"
+repository = "https://github.com/emilk/egui/tree/master/egui_demo_lib"
+categories = ["gui", "graphics"]
+keywords = ["glium", "egui", "gui", "gamedev"]
+include = ["../LICENSE-APACHE", "../LICENSE-MIT", "**/*.rs", "Cargo.toml"]
+
+[package.metadata.docs.rs]
+all-features = true
+
+[lib]
+
+
+[features]
+default = []
+
+chrono = ["egui_extras/datepicker", "dep:chrono"]
+## Allow serialization using [`serde`](https://docs.rs/serde).
+serde = ["egui/serde", "dep:serde"]
+## Enable better syntax highlighting using [`syntect`](https://docs.rs/syntect).
+syntax_highlighting = ["syntect"]
+
+
+[dependencies]
+egui = { version = "0.18.0", path = "../egui", default-features = false }
+egui_extras = { version = "0.18.0", path = "../egui_extras" }
+enum-map = { version = "2", features = ["serde"] }
+tracing = { version = "0.1", default-features = false, features = ["std"] }
+unicode_names2 = { version = "0.5.0", default-features = false }
+
+#! ### Optional dependencies
+chrono = { version = "0.4", optional = true, features = ["js-sys", "wasmbind"] }
+## Enable this when generating docs.
+document-features = { version = "0.2", optional = true }
+serde = { version = "1", optional = true, features = ["derive"] }
+syntect = { version = "5", optional = true, default-features = false, features = ["default-fancy"] }
+
+
+[dev-dependencies]
+criterion = { version = "0.3", default-features = false }
+
+
+[[bench]]
+name = "benchmark"
+harness = false