Feature: New process polyfill approach

[hwillson]

This issue tracks the introduction of a new process polyfill approach.

Relates to:

• Avoid assigning globalThis.process when not defined. invariant-packages#94
• The v3.4.0-beta.15 doesn't work buildless #7895

[benjamn]

Fixed by #8347, though there may still be opportunities to improve the way we throw invariant and InvariantError exceptions in production, perhaps by dynamically fetching a module with all the error strings in it, or something along those lines. Dynamic import() might not be universally supported, but it only has to work with most applications/bundlers to be an improvement over opaque Invariant Violation 23 errors (improved by #6665, but still annoying).