Update to latest version of SQLite3 3.22.0 #326

Upgrade to bindgen 0.32
Add a shell script to upgrade bundled SQLite version
Upgrade bundle SQLite to 3.22.0
Upgrade libsqlite3-sys version to 0.9.2

libsqlite3-sys/build.rs

@@ -215,6 +215,7 @@ mod build {
             bindgen::builder()
                 .header(header.clone())
                 .parse_callbacks(Box::new(SqliteTypeChooser))
+                .rustfmt_bindings(true)
                 .generate()
                 .expect(&format!("could not run bindgen on header {}", header))
                 .write(Box::new(&mut output))