Support Text emphasis with \b for Doxygen comments

[pauljurczak]

Type: LanguageService

Describe the bug

• OS and Version: Ubuntu 18.04.5
• VS Code Version: 1.51.1
• C/C++ Extension Version: 1.1.3

This code snippet:

/// Does absolutely truly       \b nothing
void f() {}

has nothing emphasized in VSCode editor, not in doxygen popup window:

Is this an expected behavior? Is there a way to format the text and add math equations in doxygen comments, so they are visible in popup windows?