renames report images from French names to English names.
Adds PDF (binary handling) to gitattributes file.

PDF's might look like text, but lets make sure Git doesn't try and do
EOL style conversions on it.
reporting demo: translated some French names to English
Includes Reporting images as part of "standard images" list.
image conversion tool: minor improvements like copy to clipboard, hints etc.
updated reporting images

I've updated the actual *.bmp files ages ago, but forgot to update the
image byte arrays in fpGUI Toolkit.

While I was at it, I also translated some French names to English.
aggpas: Improved font work-around to work for FreeBSD too.