Adding colors and fonts when printing rich text in PDF

[openlowcode]

When printing rich-text in PDF, the colors and fonts (bold / italic) are lost

In the first version, it may be acceptable not to count the bold different length (to be checked with examples.

[openlowcode]

Proposed architecture

enhance drawTextInBox

• start at the middle of line
• start at a specified line at a specified position in line
• draw bold, italic and color
• enhance BoxTextContent to contain the mms already 'eaten' on the last line.

enhance rich text feature

• for normal text, draw several consecutive texts with the correct bold, italic and color feature