cvm-rs: merge guac and jpeg libs together into one

doesn't really need to be two seperate libraries. also preperation for other funnies

the build script has been replaced with a much saner justfile which uses much saner "yarn workspace" invocations instead of blindly cding all over the place

cvm-rs/src/lib.rs

@@ -0,0 +1,19 @@
+mod guac;
+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(())
+}