allow parsing stack traces that end with "skipping x frames"

[vzaidman]

Summary

Following #188, allow frames of the format ... skipping x frames (where x is a number) coming from Hermes for huge stack traces and track it as a special frame.

Test plan

For a 1000 stack created with recursion:

Before:

After:

• This change maintains backwards compatibility with previous Local Storage data (if modifying settings, experiments, or other persisted client state).

Upstreaming plan

• This commit should be sent as a patch to the upstream devtools-frontend repo following the contribution guide for Meta employees OR contribution guide.
• This commit is React Native-specific and cannot be upstreamed.