tasks initial impl (still working on task_on trait method)

Cargo.toml

@@ -1,6 +1,5 @@
 [package]
 name = "iris"
-default-run = "test"
 version.workspace = true
 edition.workspace = true
 
@@ -16,6 +15,10 @@ arboard = { workspace = true, features = ["wayland-data-control"] }
 pollster = { workspace = true }
 wgpu = { workspace = true }
 image = { workspace = true }
+tokio = { workspace = true, features = ["sync", "rt", "rt-multi-thread"] }
+
+[dev-dependencies]
+tokio = { workspace = true, features = ["sync", "rt", "rt-multi-thread", "time"] }
 
 [workspace]
 members = ["core", "macro"]
@@ -36,3 +39,4 @@ fxhash = "0.2.1"
 arboard = "3.6.1"
 iris-core = { path = "core" }
 iris-macro = { path = "macro" }
+tokio = "1.49.0"