Wait Object based on Mutex and Condvar

Provide an abstraction over Condvar + Mutex usage, as provided by the Rust document in Condvar.

The library provides three main types: WaitEvent, ManualResetEvent, and AutoResetEvent. WaitEvent is the core abstraction mentioned. ManualResetEvent and AutoResetEvent are just a specialization for bool type.

When compiling with Windows platform, the lib also provides windows module for native implementation of ManualResetEvent and AutoResetEvent.

Example of the abstraction provided:

```rust use syncwaitobject::WaitEvent; use std::thread;

let wait3 = WaitEvent::newinit(0); let mut waithandle = wait3.clone();

thread::spawn(move || { for i in 1..=3 { waithandle.setstate(i).unwrap(); } });

let timeout = std::time::Duration::fromsecs(1); let r#final = *wait3.wait(Some(timeout), |i| *i == 3).unwrap(); let current = *wait3.value().unwrap(); asserteq!(r#final, 3); assert_eq!(current, 3); ```

The second is to wait and then reset the value to a desired state. ```rust use syncwaitobject::WaitEvent; use std::thread;

let wait3 = WaitEvent::newinit(0); let mut waithandle = wait3.clone();

thread::spawn(move || { for i in 1..=3 { waithandle.setstate(i).unwrap(); } });

let timeout = std::time::Duration::fromsecs(1); let r#final = wait3.waitreset(Some(timeout), || 1, |i| *i == 3).unwrap(); let current = *wait3.value().unwrap(); asserteq!(r#final, 3); asserteq!(current, 1); ```