Bug with PhpPresentation 1.0.0 and PhpPresentation 1.1.0

[isobaric]

Run:
PhpOffice\PhpPresentation\IOFactory::load("demo.pptx");
get some error message:
PhpOffice\PhpPresentation\AbstractShape::setWidth(): Argument #1 ($pValue) must be of type int, float given, called in /xxx/vendor/phpoffice/phppresentation/src/PhpPresentation/Reader/PowerPoint2007.php on line 972

error file:
change return type float to int can fixed it;

[DanielRuf]

From 1.0.1 to 1.0.5 something broke pptx files.

Probably relevant:

• 5a2eeb8
• It started giving an error when opening PPTX generated after the update. PHPPresentation#858

[mureithimaina]

please fix, it doesn't make sense to make this simple pull request