is_printable 0.0.4

Identify whether a given character is printable.
Documentation 
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Determines whether a given type is printable.

Printable example:
``` rust
    let hello = "hello";
    let is_printable = hello.is_printable();
    assert_eq!(is_printable, true);
```

Unprintable example:
```rust
    let bell = '\u{7}'
    let is_printable = bell.is_printable();
    assert_eq!(is_printable, false);
```