PhpMetrics Fix phpstan level-0 and level-1 violations and some bugs

According to roadmap #386, phpstan will be included in v2. I think we can add phpstan by fixing violations level by level.

Here is a list of phpstan violations.

[x] Class Hal\Violation\ViolationParser does not have a constructor and must be instantiated without any parameters.
[x] Access to an undefined property Hal\Component\Output\ProgressBar::$stream
[x] Access to an undefined property Hal\Report\Html\Reporter::$sum
[x] Access to an undefined property Hal\Report\Html\Reporter::$avg
[x] Access to an undefined property Hal\Report\Html\Reporter::$classes
[x] Access to an undefined property Hal\Report\Html\Reporter::$files
[x] Access to an undefined property Hal\Report\Html\Reporter::$project
[x] Access to an undefined property Hal\Report\Html\Reporter::$packages
[x] Access to an undefined property Hal\Report\Html\Reporter::$history
[x] Access to an undefined property Hal\Violation\Class_\Blob::$metric
[x] Access to an undefined property Hal\Violation\Class_\ProbablyBugged::$metric
[x] Access to an undefined property Hal\Violation\Class_\TooDependent::$metric
[x] Access to an undefined property Hal\Violation\Class_\TooLong::$metric
[x] Return type mixed of method Hal\Component\Ast\Php5NodeTraverser::traverseArray() is not covariant with return type array of method PhpParser\NodeTraverser::traverseArray()

[x] Constructor of class Hal\Component\Ast\Php7NodeTraverser has an unused parameter $cloneNodes
[x] Variable $commentWeight might not be defined in Hal/Metric/Class_/Component/MaintainabilityIndexVisitor.php
[x] Constructor of class Hal\Metric\System\Packages\Composer\Composer has an unused parameter $files
[x] Variable $node might not be defined in Hal/Component/Tree/Operator/CycleDetector.php

[x] Replace ActualNodeTraverser class_alias with NodeTraverserFactory. This is necessary in order to make phpstan running without configuration.
[x] Fix progress bar doesn't show up in non-windows OS.
[x] Add PHPStan

Notes:

~~Unfortunately, Php5NodeTraverser should be excluded because of violation above.~~. Fixed with temporary solution. See https://github.com/phpstan/phpstan/issues/3557.
~~I don't how to fix this line.~~ Fixed. https://github.com/phpmetrics/PhpMetrics/blob/62a177cdbb2319907a3f6bf8a53f899d9f76b1c9/src/Hal/Component/Tree/Operator/CycleDetector.php#L45
Install PHPStan using phive to avoid dependencies conflict.

Attachment: phpstan-L0.txt phpstan-L1.txt phpstan-L2.txt