Create main binary

In addition to being a solid library, the chess package should also end
up as a decent command line program with a playable game. This is
possible because a package can be a library as well as a binary.

Because the main function isn't tested, and may be difficult to test,
using submodules is a pain, because they show up as unused imports. The
main function as well shows up as an unused function when testing. Since
main is such a special case, there is an open issue to make the test
runner not show that warning.

rust-lang/rust#12327

For the time being though, I've done as the OP of that issue said he
does: putting #[cfg(not(test))] before the main function so that the
linter ignores it.

Author: ryanhiebert

src/main.rs

@@ -0,0 +1,10 @@
+extern crate chess;
+
+
+#[cfg(not(test))]
+fn main() {
+    let notation = &chess::notation::ZeroIntegersNotation;
+    let game = &chess::Game::new();
+    game.parse(notation, "01 02");
+    println!("This is chess!");
+}