[FEATURE] windows support

[Slach]

currently under windows 10

cargo install zellij

return lot of errors during compile termion

error[E0425]: cannot find function `set_terminal_attr` in this scope
   --> C:\Users\Slach\.cargo\registry\src\github.com-1ecc6299db9ec823\termion-1.5.6\src\raw.rs:119:9
    |
119 |         set_terminal_attr(&self.prev_ios)?;
    |         ^^^^^^^^^^^^^^^^^ not found in this scope

error[E0425]: cannot find function `get_terminal_attr` in this scope
   --> C:\Users\Slach\.cargo\registry\src\github.com-1ecc6299db9ec823\termion-1.5.6\src\raw.rs:125:23
    |
125 |         let mut ios = get_terminal_attr()?;
    |                       ^^^^^^^^^^^^^^^^^ not found in this scope

error[E0425]: cannot find function `raw_terminal_attr` in this scope
   --> C:\Users\Slach\.cargo\registry\src\github.com-1ecc6299db9ec823\termion-1.5.6\src\raw.rs:126:9
    |
126 |         raw_terminal_attr(&mut ios);
    |         ^^^^^^^^^^^^^^^^^ not found in this scope

error[E0425]: cannot find function `set_terminal_attr` in this scope
   --> C:\Users\Slach\.cargo\registry\src\github.com-1ecc6299db9ec823\termion-1.5.6\src\raw.rs:127:9
    |
127 |         set_terminal_attr(&ios)?;
    |         ^^^^^^^^^^^^^^^^^ not found in this scope