chore(xtask): Add xtask skeleton

.cargo/config.toml

@@ -0,0 +1,2 @@
+[alias]
+xtask = "run --package xtask --"

.gitignore

@@ -1,6 +1,5 @@
 target
 Cargo.lock
-.cargo
 /config.stamp
 /Makefile
 /config.mk

Cargo.lock

@@ -3694,6 +3694,10 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "xtask"
+version = "0.0.0"
+
 [[package]]
 name = "yansi"
 version = "0.5.1"

crates/xtask/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "xtask"
+version = "0.0.0"
+edition = "2021"
+publish = false
+
+[dependencies]

crates/xtask/src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}