Bug 694851: pass more information to fz_load_system_font

The following changes allow font providers to make better choices WRT
what font to provide and under what circumstances:

* bold and italic flags are passed in so that implementors can decide
  themselves whether to ask for simulated boldening/italicising
  if a font claims not to be bold/italic
* is_substitute is replaced with needs_exact_metrics to make the
  meaning of this argument hopefully clearer (that argument is set only
  for PDF fonts without a FontDescriptor)
* the font name is always passed as requested by the document instead
  of the cleaned name for the standard 14 fonts which allows
  distinguishing e.g. Symbol and Symbol,Bold

0 files changed, 0 insertions, 0 deletions