Documentation, Usability

API documentation
- meaning of parameters?
  - e.g., what is the "op" of store?
  - e.g., what are the properties of "memarg"?
- when do the callbacks get called?
"Harness generator", e.g. $ wasabi-harness bla.wasm analysis.js that
- by convention: bla.wasm contains start functions, uses no imports
- generates "host harness" that runs bla.wasm
- instruments bla.wasm and includes analysis.js in host harness
Documentation on how to run (integration style) tests

Engineering, small Features, Tests

Reduce memory allocations (see eval/perf/ heaptrack data) in hook_map::instr() and Hook::new()
- more borrowing, less String
fix wrong handling of call_indirect in Firefox: exported function object .name property is NOT the Wasm index -> BUG report and compare with Chrome!
automatic (cargo test-able) integration tests for analyses
- using Wasm in Node.js
- make sure null- or log-all-analysis run without exception
proper error handling in library and binary with failure crate
- implement own Error type
- replace panics with Result<_, wasabi::Error>
- implement From and Error traits
How to handle Wasm traps?
- (Hacky:) replace Wasm function by Wasm -> JS -> Wasm wrapper that does
```
try { 
    original_wasm_func()
} catch (e) {
    trap_hook()
}
```