ash/entry: Allow building entry from handle+fns

Adds a constructor to build an entry from a handle + functions.
Helps with interoperability with other vulkan wrappers

ash/src/entry.rs

@@ -165,6 +165,25 @@ impl Entry {
         }
     }
 
+    #[inline]
+    pub unsafe fn from_parts_1_3(
+        static_fn: vk::StaticFn,
+        entry_fn_1_0: vk::EntryFnV1_0,
+        entry_fn_1_1: vk::EntryFnV1_1,
+        entry_fn_1_2: vk::EntryFnV1_2,
+        entry_fn_1_3: vk::EntryFnV1_3,
+    ) -> Self {
+        Self {
+            static_fn,
+            entry_fn_1_0,
+            entry_fn_1_1,
+            entry_fn_1_2,
+            entry_fn_1_3,
+            #[cfg(feature = "loaded")]
+            _lib_guard: None,
+        }
+    }
+
     #[inline]
     pub fn fp_v1_0(&self) -> &vk::EntryFnV1_0 {
         &self.entry_fn_1_0