tools: add bash completion for node

This commit adds a --completion-bash option to node which can be sourced to provide bash code completion for node options.

Usage:

$ node --completion-bash > node_bash_completion
$ source node_bash_completion
$ ./node --[tab]  # (press the 'tab' key)
--abort_on_uncaught_exception  --inspect-brk-node=            --require
--check                        --inspect-brk=                 --security-reverts
--completion-bash              --inspect-port                 --stack_trace_limit
--debug                        --inspect=                     --throw-deprecation
--debug-brk                    --interactive                  --title
--debug-brk=                   --loader                       --tls-cipher-list
--debug-port                   --max_old_space_size           --trace-deprecation
--debug=                       --napi-modules                 --trace-event-categories
--eval                         --no-deprecation               --trace-event-file-pattern
--experimental-modules         --no-force-async-hooks-checks  --trace-events-enabled
--experimental-repl-await      --no-warnings                  --trace-sync-io
--experimental-vm-modules      --openssl-config               --trace-warnings
--experimental-worker          --pending-deprecation          --track-heap-objects
--expose-internals             --perf_basic_prof              --use-bundled-ca
--expose_internals             --perf_prof                    --use-openssl-ca
--help                         --preserve-symlinks            --v8-options
--icu-data-dir                 --preserve-symlinks-main       --v8-pool-size
--inspect                      --print                        --version
--inspect-brk                  --prof-process                 --zero-fill-buffers
--inspect-brk-node             --redirect-warnings

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• commit message follows commit guidelines