learn how workspaces + proc macros work & restructure everything

Cargo.toml

@@ -1,12 +1,30 @@
 [package]
 name = "iris"
-version = "0.1.0"
-edition = "2024"
 default-run = "test"
+version.workspace = true
+edition.workspace = true
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+iris-core = { workspace = true }
+iris-macro = { workspace = true }
+cosmic-text = { workspace = true }
+unicode-segmentation = { workspace = true }
+winit = { workspace = true }
+arboard = { workspace = true, features = ["wayland-data-control"] }
+pollster = { workspace = true }
+wgpu = { workspace = true }
+image = { workspace = true }
+
+[workspace]
+members = ["core", "macro"]
+
+[workspace.package]
+version = "0.1.0"
+edition = "2024"
+
+[workspace.dependencies]
 pollster = "0.4.0"
 winit = "0.30.12"
 wgpu = "27.0.1"
@@ -15,5 +33,6 @@ image = "0.25.6"
 cosmic-text = "0.15.0"
 unicode-segmentation = "1.12.0"
 fxhash = "0.2.1"
-arboard = { version = "3.6.1", features = ["wayland-data-control"] }
-
+arboard = "3.6.1"
+iris-core = { path = "core" }
+iris-macro = { path = "macro" }