Android Support (#166)

1. Add vpnservice tauri plugin for android.
2. add workflow for android.
3. Easytier Core support android, allow set tun fd.

tauri-plugin-vpnservice/.github/workflows/audit.yml

@@ -0,0 +1,32 @@
+name: Audit
+
+on:
+  schedule:
+    - cron: '0 0 * * *'
+  push:
+    branches:
+      - main
+    paths:
+      - ".github/workflows/audit.yml"
+      - "**/Cargo.lock"
+      - "**/Cargo.toml"
+  pull_request:
+    branches:
+      - main
+    paths:
+      - ".github/workflows/audit.yml"
+      - "**/Cargo.lock"
+      - "**/Cargo.toml"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  audit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: rustsec/audit-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}