Revert "Creation of classes to display a text with a bitmap font

Creation of a class to load and store a bitmap font from .png files.
And creation of a class to display a text with this type of font.

Signed-off-by: TimyusVegetari <ant110283@hotmail.fr>"

This reverts commit 7e752bb10b9c1f099fb56a0f3ceb32a0e9d47d35.