go : adding features to the go-whisper example, go ci, etc (#384)

* Updated bindings so they can be used in third pary packages.

* Updated makefiles to set FMA flag on optionally, for xeon E5 on Darwin

* Added test script

* Changes for examples

* Reverted

* Made the NewContext method private

.github/workflows/bindings.yml

@@ -0,0 +1,17 @@
+name: Bindings Tests
+on:
+  push:
+    paths:
+      - bindings/go/**
+
+jobs:
+    ubuntu-latest:
+      runs-on: ubuntu-latest
+      steps:
+      - uses: actions/setup-go@v3
+        with:
+          go-version: '^1.19'
+      - uses: actions/checkout@v1
+      - run: |
+          cd bindings/go
+          make test