feat: modernise and update

[ThaUnknown]

• updated to latest version of anitomy
• switched to ESM [browserify is no longer needed as browsers support ESM imports]
• removed build folder, and now build directly into dist as its no longer needed to bundle
• removed unused EMS modules
• reduced memory usage
• rewrote to use async/await
• removed unused dependencies

mocha doesn't really like ESM, so that will need to be changed, the built-in node:test should do just fine, but that's not covered in this PR

you could also probably do away with gulpfile and use a normal node script, but for now it's fine

all of the JS wrapping can be done away if one used the esm integration but the support for that is flakey at best, so for now its a no.

TLDR: bundle size is smaller, library loads faster, uses less memory, drops support for IE