support start on reboot (#132)

* move launcher to eastier lib
* support auto start after reboot

easytier-gui/src/modules/auto_launch.ts

@@ -0,0 +1,16 @@
+import { setAutoLaunchStatus } from "~/composables/network"
+
+export async function loadAutoLaunchStatusAsync(enable: boolean): Promise<boolean> {
+    try {
+        const ret = await setAutoLaunchStatus(enable)
+        localStorage.setItem('auto_launch', JSON.stringify(ret))
+        return ret
+    } catch (e) {
+        console.error(e)
+        return false
+    }
+}
+
+export function getAutoLaunchStatusAsync(): boolean {
+    return localStorage.getItem('auto_launch') === 'true'
+}