[FIX] report, rlm2pdf: added support of Sun-ExtA font and the possibility to define a default value for font parameters in parastyles. We can now use <paraStyle name='Normal fontName='xxxx'/> in company header, for example, if we want to define font xxxx to be used by default in each rml reports (if not overwritten in a further paraStyle)
[IMP/FIX] base, res_company: changed the default headers in order to add the default styles in generated RML, to allow their modification (and the report printing of chinese characters, for example)
[FIX] rml2pdf: correct filename for Sun-ExtA font