Function unwrap

unwrap(source: string, ...wrappers: readonly string[]): string
'Unwraps' a string, removing one or more 'wrapper' strings that it starts and ends with. Only removes when a matching end is found.
```
unwrap("'hello'", "'");        // hello
// No mataching end 'a', so nothing happens
unwrap("apple", "a");          // apple
unwrap("wow", "w");            // o
unwrap(`"'blah'"`, '"', "'");  // blah
```
Parameters
- source: string
- ...wrappers: readonly string[]
Returns string