Import 'itoa' crate version 0.4.6

Bug: 163175424
Test: N/A
Change-Id: I5f3a0f346ef0c5ca8c468f69fc15afe0c2950f90
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..b39358d
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,18 @@
+name: "itoa"
+description:
+    "Fast functions for printing integer primitives to an io::Write"
+
+third_party {
+  url {
+    type: HOMEPAGE
+    value: "https://crates.io/crates/itoa"
+  }
+  url {
+    type: ARCHIVE
+    value: "https://static.crates.io/crates/itoa/itoa-0.4.6.crate"
+  }
+  version: "0.4.6"
+  last_upgrade_date { year: 2020 month: 8 day: 21 }
+  license_type: NOTICE
+}
+