CFontzPacket: Report cell size according to display type (used to calculate

hBar width). Use block charcter (31d) on displays which have it instead of
the custom icon. On seamless displays do not fill the last line to avoid the
character banging together.

ChangeLog

@@ -25,6 +25,7 @@ v.0.5dev (ongoing development)
  * hd44780: Add KOI8-R character mapping (Yura Scheglyuk)
  * shuttleVFD: Add support for devices with USB VID 0x1308 again
  * CFontzPacket: Add CFA-533. Use HD44780 character mapping for CFA533/633.
+ * CFontzPacket: Report cell size correctly, use block character for icon.
  * CFontz633: Deprecate this driver. Use CFontzPacket with Model=633 instead!
  - Remove native win32 support.