Debug protocol additions for November

[weinand]

Planned for November:

• Allow multiline eval results in debug console Add the 'disableValueEscaping' flag vscode-debugadapter-node#83
• Allow debug adapters to customize the behavior of the 'restart' button Allow debug adapters to customize the behavior of the 'restart' button #14189
• Add reverse continue for TimeTravel Debugging feature Feature request: Add reverse continue for TimeTravel Debugging feature for Node #13705
• Support a variablesReference in OutputEvent Support a variablesReference in OutputEvent vscode-debugadapter-node#79
• Support more flexible handling of exceptions Debug Protocol: Support more flexible handling of exceptions vscode-debugadapter-node#64
• formatting hints Formatting Hints for requests that return displayable values vscode-debugadapter-node#84

Planned for December:

• Allow passing back a path AND a sourceReference Debug Protocol: Allow passing back a path AND a sourceReference  vscode-debugadapter-node#60

Rejected:

• Add ability to change the value of expressions Change the value of expressions vscode-debugadapter-node#85

Backlog:

• Protocol support for "blackbox script"/"Just my code" Debugging - UI/protocol support for "blackbox script"/"Just my code" #14728

/cc @gregg-miskelly @jacdavis @kieferrm @egamma @roblourens @richardstanton