Add github CI + badges

.github/workflows/build-test.yml

@@ -0,0 +1,23 @@
+name: Build & Test with Bun
+
+on:
+    push:
+        branches: [ main ]
+    pull_request:
+        branches: [ main ]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+        - name: Checkout 
+          uses: actions/checkout@v3 # Checkout repo
+
+        - name: Setup Bun
+          uses: oven-sh/setup-bun@v1 # Setup bun
+          with:
+            bun-version: latest
+
+        - run: bun i # Install dependencies
+        - run: bun run build # Build sources
+        - run: bun test # Run tests

README.md

@@ -1,5 +1,7 @@
 # rml-mapper-processor-ts
 
+[![Bun CI](https://github.com/julianrojas87/rml-mapper-processor-ts/actions/workflows/build-test.yml/badge.svg)](https://github.com/julianrojas87/rml-mapper-processor-ts/actions/workflows/build-test.yml) [![npm](https://img.shields.io/npm/v/rml-mapper-processor-ts.svg?style=popout)](https://npmjs.com/package/rml-mapper-processor-ts)
+
 Typescript wrappers over the RML-related operations to be reused within the [Connector Architecture](https://github.com/TREEcg/connector-architecture). Currently this repository exposes 2 functions:
 
 ### [`js:Y2R`](https://github.com/julianrojas87/rml-mapper-processor-ts/blob/main/processors.ttl#L9):