Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

vendor/terminal_size/examples/get_size.rs

@@ -0,0 +1,49 @@
+#[cfg(windows)]
+fn run() {
+    use std::os::windows::io::RawHandle;
+    use winapi::um::processenv::GetStdHandle;
+    use winapi::um::winbase::{STD_ERROR_HANDLE, STD_INPUT_HANDLE, STD_OUTPUT_HANDLE};
+
+    let stdout = unsafe { GetStdHandle(STD_OUTPUT_HANDLE) } as RawHandle;
+    println!(
+        "Size from terminal_size_using_handle(stdout): {:?}",
+        terminal_size::terminal_size_using_handle(stdout)
+    );
+
+    let stderr = unsafe { GetStdHandle(STD_ERROR_HANDLE) } as RawHandle;
+    println!(
+        "Size from terminal_size_using_handle(stderr): {:?}",
+        terminal_size::terminal_size_using_handle(stderr)
+    );
+
+    let stdin = unsafe { GetStdHandle(STD_INPUT_HANDLE) } as RawHandle;
+    println!(
+        "Size from terminal_size_using_handle(stdin):  {:?}",
+        terminal_size::terminal_size_using_handle(stdin)
+    );
+}
+
+#[cfg(not(windows))]
+fn run() {
+    println!(
+        "Size from terminal_size_using_fd(stdout):     {:?}",
+        terminal_size::terminal_size_using_fd(libc::STDOUT_FILENO)
+    );
+    println!(
+        "Size from terminal_size_using_fd(stderr):     {:?}",
+        terminal_size::terminal_size_using_fd(libc::STDERR_FILENO)
+    );
+    println!(
+        "Size from terminal_size_using_fd(stdin):      {:?}",
+        terminal_size::terminal_size_using_fd(libc::STDIN_FILENO)
+    );
+}
+
+fn main() {
+    println!(
+        "Size from terminal_size():                    {:?}",
+        terminal_size::terminal_size()
+    );
+
+    run();
+}