Import 'regex' package vesion 1.3.6

* Add OWNERS
* No Android.bp yet
Bug: 152884384
Test: make

Change-Id: I455caf7833b6c437c1c133bc7b2f47b83da9cbce
diff --git a/METADATA b/METADATA
new file mode 100644
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--- /dev/null
+++ b/METADATA
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+name: "regex"
+description: "A Rust library for parsing, compiling, and executing regular expressions. Its syntax is similar to Perl-style regular expressions, but lacks a few features like look around and backreferences. In exchange, all searches execute in linear time with respect to the size of the regular expression and search text. Much of the syntax and implementation is inspired by RE2."
+third_party {
+  url {
+    type: HOMEPAGE
+    value: "https://crates.io/crates/regex"
+  }
+  url {
+    type: GIT
+    value: "https://github.com/rust-lang/regex"
+  }
+  version: "1.3.6"
+  license_type: NOTICE
+  last_upgrade_date {
+    year: 2020
+    month: 3
+    day: 31
+  }
+}