[feat] NoTrailingCommaInSingLineArrayFixer

|Q            |A  |
|---          |---|
|Bug Fix?     |no  |
|New Feature? |yes|
|BC Breaks?   |no  |
|Deprecations?|n  |
|Tests Pass?  |yes|
|Fixed Tickets|   |
|License      |MIT|
|Doc PR       |   |

Fixer for `Single-line arrays should not have trailing comma.`
                   
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You used this comparision two times.
It may be usefull to create `Tokens::isArray($index)`