Vendor dependencies

Let's see how I like this workflow.

vendor/crossterm_winapi/examples/screen_buffer.rs

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+#![allow(dead_code)]
+
+#[cfg(windows)]
+use std::io::Result;
+
+#[cfg(windows)]
+use crossterm_winapi::ScreenBuffer;
+
+#[cfg(windows)]
+fn print_screen_buffer_information() -> Result<()> {
+    let screen_buffer = ScreenBuffer::current()?;
+
+    // get console screen buffer information
+    let csbi = screen_buffer.info()?;
+
+    println!("cursor post: {:?}", csbi.cursor_pos());
+    println!("attributes: {:?}", csbi.attributes());
+    println!("terminal window dimentions {:?}", csbi.terminal_window());
+    println!("terminal size {:?}", csbi.terminal_size());
+
+    Ok(())
+}
+
+#[cfg(windows)]
+fn multiple_screen_buffers() -> Result<()> {
+    // create new screen buffer
+    let screen_buffer = ScreenBuffer::create()?;
+
+    // which to this screen buffer
+    screen_buffer.show()
+}
+
+#[cfg(windows)]
+fn main() -> Result<()> {
+    print_screen_buffer_information()
+}
+
+#[cfg(not(windows))]
+fn main() {
+    println!("This example is for the Windows platform only.");
+}