feat(apple): add Device::is_paired getter

.changes/is-paired.md

@@ -0,0 +1,5 @@
+---
+"cargo-mobile2": patch
+---
+
+Added `apple::device::Device::is_paired`.

src/apple/device/mod.rs

@@ -124,6 +124,10 @@ impl<'a> Device<'a> {
         self.kind
     }
 
+    pub fn is_paired(&self) -> bool {
+        self.paired
+    }
+
     pub fn run(
         &self,
         config: &Config,