Support Flow component syntax

**Version**: `documentation@14.0.3`
**Usage**: CLI - `npx documentation build ./Example.js --shallow`
**Docs**: https://flow.org/en/docs/react/component-syntax/

### Code
```js
/** @flow */

component Example( text: string = 'Hello World' ) {
return

;
};
```
### Expected
```
[
{
"description": "",
"tags": [
{
"title": "flow",
"description": null,
"lineNumber": 0
}
]
...
]
```

### Actual

```
SyntaxError: Missing semicolon. (3:9)
at constructor (/home/anttis/Dev/LianaUI/node_modules/@babel/parser/lib/index.js:362:19)
at V8IntrinsicMixin.raise (/home/anttis/Dev/LianaUI/node_modules/@babel/parser/lib/index.js:3260:19)
at V8IntrinsicMixin.semicolon (/home/anttis/Dev/LianaUI/node_modules/@babel/parser/lib/index.js:3586:10)
at V8IntrinsicMixin.parseExpressionStatement (/home/anttis/Dev/LianaUI/node_modules/@babel/parser/lib/index.js:12761:10)
at V8IntrinsicMixin.parseExpressionStatement (/home/anttis/Dev/LianaUI/node_modules/@babel/parser/lib/index.js:5073:18)
at V8IntrinsicMixin.parseStatementContent (/home/anttis/Dev/LianaUI/node_modules/@babel/parser/lib/index.js:12376:19)
at V8IntrinsicMixin.parseStatementLike (/home/anttis/Dev/LianaUI/node_modules/@babel/parser/lib/index.js:12239:17)
at V8IntrinsicMixin.parseStatementLike (/home/anttis/Dev/LianaUI/node_modules/@babel/parser/lib/index.js:5051:24)
at V8IntrinsicMixin.parseModuleItem (/home/anttis/Dev/LianaUI/node_modules/@babel/parser/lib/index.js:12216:17)
at V8IntrinsicMixin.parseBlockOrModuleBlockBody (/home/anttis/Dev/LianaUI/node_modules/@babel/parser/lib/index.js:12792:36)
```