Add alternative local vectors source.

x5 speed boost!!

src/embedding.js

@@ -0,0 +1,17 @@
+const TASK = 'feature-extraction';
+
+/**
+ * @param {string} text - The text to vectorize
+ * @returns {Promise<number[]>} - The vectorized text in form of an array of numbers
+ */
+async function getTransformersVector(text) {
+    const module = await import('./transformers.mjs');
+    const pipe = await module.default.getPipeline(TASK);
+    const result = await pipe(text, { pooling: 'mean', normalize: true });
+    const vector = Array.from(result.data);
+    return vector;
+}
+
+module.exports = {
+    getTransformersVector,
+}