bacon v3.6.0

• support for cpp (gcc & clang) with analyzer = "cpp" - Thanks @bryceberger
• removal of the --path argument, replaced with --project and --watch (overrides the list of watched files). The path to the project can also be given as trailing argument as today. - Fix #274
• the cargo_json analyzer can now be leveraged to export data from the cargo metadata Diagnostic and DiagnosticSpan structs - Fix #249