FEATURE: Allow PHP 7 type declaration

[DanielSiepmann]

• Accordingly to
  http://php.net/manual/en/functions.arguments.php#functions.arguments.type-declaration
  We now allow also bool, float, int and string

[DanielSiepmann]

Otherwise the following code will result in errors:

protected function shouldExecuteHook(string $action, string $table, string $recordUid, array $modifiedFields) : bool 

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FOUND 6 ERRORS AFFECTING 4 LINES                                                                                               
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 160 | ERROR | Unknown type hint "string" found for $action (TYPO3SniffPool.Commenting.FunctionComment.InvalidTypeHint)        
 160 | ERROR | Unknown type hint "string" found for $table (TYPO3SniffPool.Commenting.FunctionComment.InvalidTypeHint)         
 160 | ERROR | Unknown type hint "string" found for $recordUid (TYPO3SniffPool.Commenting.FunctionComment.InvalidTypeHint)     
 202 | ERROR | Unknown type hint "string" found for $fieldToModify (TYPO3SniffPool.Commenting.FunctionComment.InvalidTypeHint) 
 223 | ERROR | Unknown type hint "string" found for $recordUid (TYPO3SniffPool.Commenting.FunctionComment.InvalidTypeHint)     
 245 | ERROR | Unknown type hint "int" found for $pageUid (TYPO3SniffPool.Commenting.FunctionComment.InvalidTypeHint)          
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[DanielSiepmann]

Looks like the failing result is not due to the change? Or someone has to help me to understand the result so I can fix the broken part.

[Konafets]

Thanks for the PR! It seems something is wrong with PHPCS itself. I will have a look at this and your PR as well.

[DanielSiepmann]

Thanks for taking a look.

I've also noticed that PHPCS or TYPO3SniffPool, don't know anymore which exactly, has issues with yield, too. So generators will also fail.