Update ci with Android/iOS

Author: songww

.github/workflows/rust.yml

@@ -41,6 +41,39 @@ jobs:
         command: test
         args: --manifest-path=fftw/Cargo.toml --features=${{ matrix.feature }} --no-default-features
 
+  ios:
+    runs-on: macos-latest
+    strategy:
+      fail-fast: false
+    steps:
+    - uses: actions/checkout@v1
+    - name: Force XCode
+      run: sudo xcode-select -switch /Applications/Xcode.app
+    - name: Install targets
+      run: rustup target install aarch64-apple-ios
+    - uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --manifest-path=fftw/Cargo.toml --target aarch64-apple-ios --features=source --no-default-features --no-run
+
+  android:
+    runs-on: ubuntu-18.04
+    strategy:
+      fail-fast: false
+      matrix:
+        targets: ["aarch64-linux-android", "armv7-linux-androideabi"]
+    steps:
+    - uses: nttld/setup-ndk@v1
+      with:
+        ndk-version: r21d
+    - uses: actions/checkout@v1
+    - name: Install targets
+      run: rustup target install aarch64-linux-android armv7-linux-androideabi
+    - uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --manifest-path=fftw/Cargo.toml --target ${{ matrix.targets }} --features=source --no-default-features --no-run
+
   linux:
     runs-on: ubuntu-18.04
     strategy: