discussion: Potential merge upstream

[timfish]

Opening this issue to better summarise our additional features and fixes:

• feat: Add wasm module build #1
  • Copy of feat: Add wasm module build DataDog/orchestrion-js#12
• fix: Ensure channel_name doesn't cause invalid identifiers #4
• fix: Don't check for matching sync/async function type #5
• fix: Handle module.exports = class Foo when locating classes #7
• feat: Error when code injection fails #9
  • Potentially breaking for Datadog?
• feat: Allow unknown module type #11
• fix: Use uniquely named local variables #13
  • Copy of fix: change rewritten function nametraced to __apm$traced DataDog/orchestrion-js#21
• feat: Sourcemap support #16
• fix: Updated visit_mut_fn_decl to return true to allow walking a function to identify nested functions #17
• fix: Allow for argumentation mutation in complex argument functions #19
• feat: Include module version in event args #23

cc @AbhiPrasad, @jsumners-nr, @bizob2828, @bengl, @simon-id