Use SyncReader & InputEvent::CursorPosition for pos_raw()

[zrzka]

Changes

• Replaces stdin reading & parsing with InputEvent::CursorPosition
• Fixes Cursor position swallowed by input reader crossterm#199

TODO

Once crossterm-rs/crossterm-input#9 is merged to master.

• Replace zrzka/unix-async-events branch with master (Cargo.toml)

Test

Tested with the following code on macOS & Linux:

use crossterm_cursor::{Result, TerminalCursor};

fn main() -> Result<()> {
    let cursor = TerminalCursor::new();

    cursor.save_position()?;

    cursor.goto(30, 20)?;
    assert_eq!(cursor.pos().unwrap(), (30, 20));

    cursor.restore_position()
}

[TimonPost]

Great. Let's approve the other one update this one and merge this one.

[zrzka]

Updated the branch. Waiting for CI and merge then.