Updates Writer to visually indicate the following Unicode bidi control characters when "Show Formatting Marks" is enabled: - U+200E LEFT-TO-RIGHT MARK - U+200F RIGHT-TO-LEFT MARK - U+202A LEFT-TO-RIGHT EMBEDDING - U+202B RIGHT-TO-LEFT EMBEDDING - U+202C POP DIRECTIONAL FORMATTING - U+202D LEFT-TO-RIGHT OVERRIDE - U+202E RIGHT-TO-LEFT OVERRIDE Change-Id: I1989eb793f8f89633c067a4bcbf0f1245dc0b9f0 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/203132 Reviewed-by: Jonathan Clark <jonathan@libreoffice.org> Tested-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>