ajout de Sheebr + support de shutdown + auto install kernel

rootfs overrides/usr/lib/sheebr/utils.js

@@ -0,0 +1,31 @@
+async function getline(str) {
+    process.stdout.write(str)
+    process.stdin.resume();
+    process.stdin.setEncoding('utf8')
+    let line = ""
+    return new Promise((res, rej) => {
+        process.stdin.on('data', function(chunk) {
+
+            line += chunk
+            if (chunk.toString('utf-8').endsWith('\n')) {
+                process.stdin.pause()
+                res(line.substring(0, line.length -1))
+            }
+        })
+        process.stdin.on('error', function(err) {
+            rej(err)
+        })
+    })
+}
+
+function isAlpha(str){
+    return /^[a-zA-Z]*$/.test(str);
+}
+
+
+
+
+module.exports = {
+    isAlpha, getline
+
+}