Allow inlay hints to be region disabled much like clang-format can be disabled

[bradphelan]

Feature Request

If trying to make an aligned table inlay hints destroy readability rather that improve it even if in other parts of the code they are usefull. I suggest a magic tag

// vscode-cpptools: inlay-hints-off
// vscode-cpptools: inlay-hints-on

pair to disable and enable