Separate Bold and Bright foreground colors

[mixmastamyk]

Expected behaviour

Use of bold ANSI attribute should not also set a bright foreground color

Actual behaviour

Use of bold ANSI attribute sets bright foreground color

See for details:

• https://superuser.com/questions/516123/disable-using-bright-colors-for-bold-font-in-gnome-terminal
• https://github.com/mate-desktop/mate-terminal/issues/217