cvm-rs: version 0.2.0

- switch to napi-rs. this mostly affects only the backend side of things, but IMO napi-rs is better (also, way less boilerplate is needed compared to neon).

- jpeg encoding no longer clones the input buffer internally (or wraps it in a Mutex as well), thanks to napi-rs not sucking in this regard. this is *probably* a micro-optimization, but will make it easier to later on do parallel encoding of all rectangles

- guac encoding is weird. This is kind of a painpoint of napi-rs but it's bearable

cvm-rs/src/lib.rs

@@ -3,15 +3,3 @@ mod guac_js;
 
 mod jpeg_compressor;
 mod jpeg_js;
-
-use neon::prelude::*;
-
-#[neon::main]
-fn main(mut cx: ModuleContext) -> NeonResult<()> {
-	// Mostly transitionary, later on API should change
-	cx.export_function("jpegEncode", jpeg_js::jpeg_encode)?;
-
-	cx.export_function("guacDecode", guac_js::guac_decode)?;
-	cx.export_function("guacEncode", guac_js::guac_encode)?;
-	Ok(())
-}