Add structopt dependency in version 0.3.7

This patch series replaces argparse with structopt in the argument
handling code. As a first step, we need structopt as a dependency.

Import subrepo structopt/:structopt at efbdda4753592e27bc430fb01f7b9650b2f3174d
Import subrepo bitflags/:bitflags at 30668016aca6bd3b02c766e8347e0b4080d4c296
Import subrepo clap/:clap at 784524f7eb193e35f81082cc69454c8c21b948f7
Import subrepo heck/:heck at 093d56fbf001e1506e56dbfa38631d99b1066df1
Import subrepo proc-macro-error/:proc-macro-error at 6c4cfe79a622c5de8ae68557993542be46eacae2
Import subrepo proc-macro2/:proc-macro2 at d5d48eddca4566e5438e8a2cbed4a74e049544de
Import subrepo quote/:quote at 727436c6c137b20f0f34dde5d8fda2679b9747ad
Import subrepo rustversion/:rustversion at 0c5663313516263059ce9059ef81fc7a1cf655ca
Import subrepo syn-mid/:syn-mid at 5d3d85414a9e6674e1857ec22a87b96e04a6851a
Import subrepo syn/:syn at e87c27e87f6f4ef8919d0372bdb056d53ef0d8f3
Import subrepo textwrap/:textwrap at abcd618beae3f74841032aa5b53c1086b0a57ca2
Import subrepo unicode-segmentation/:unicode-segmentation at 637c9874c4fe0c205ff27787faf150a40295c6c3
Import subrepo unicode-width/:unicode-width at 3033826f8bf05e82724140a981d5941e48fce393
Import subrepo unicode-xid/:unicode-xid at 4baae9fffb156ba229665b972a9cd5991787ceb7

1 files changed, 34 insertions, 0 deletions

diff --git a/bitflags/README.md b/bitflags/README.md
new file mode 100644
index 0000000..df12934
--- /dev/null
+++ b/bitflags/README.md
@@ -0,0 +1,34 @@
+bitflags
+========
+
+[![Build Status](https://travis-ci.com/bitflags/bitflags.svg?branch=master)](https://travis-ci.com/bitflags/bitflags)
+[![Join the chat at https://gitter.im/bitflags/Lobby](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/bitflags/Lobby?utm_source=badge&utm_medium=badge&utm_content=badge)
+[![Latest version](https://img.shields.io/crates/v/bitflags.svg)](https://crates.io/crates/bitflags)
+[![Documentation](https://docs.rs/bitflags/badge.svg)](https://docs.rs/bitflags)
+![Minimum rustc version](https://img.shields.io/badge/rustc-1.20+-yellow.svg)
+![License](https://img.shields.io/crates/l/bitflags.svg)
+
+A Rust macro to generate structures which behave like a set of bitflags
+
+- [Documentation](https://docs.rs/bitflags)
+- [Release notes](https://github.com/bitflags/bitflags/releases)
+
+## Usage
+
+Add this to your `Cargo.toml`:
+
+```toml
+[dependencies]
+bitflags = "1.0"
+```
+
+and this to your crate root:
+
+```rust
+#[macro_use]
+extern crate bitflags;
+```
+
+## Rust Version Support
+
+The minimum supported Rust version is 1.20 due to use of associated constants.