Bug 396793 - Text decorators

*Added contribution by Andreas to draw text decorators
*Added missing interface ITextDecorator and TextDecorator class
*Added bounds calculation
*Added disposal of text decorator fonts
*Added test (UI)
*Added support in Sketch tool for manual testing
*Added support for setting foreground and background colors in text
decorators

Change-Id: If74a926a86660068280dcd62038361f51ab420c8
6 files changed
tree: 539611c07342348f272828e9915672d148313e10
  1. examples/
  2. features/
  3. plugins/
  4. releng/
  5. tests/