examples: start adding Go examples using api/ (#2879)

We can have the same examples as e.g. https://github.com/ollama/ollama-python/tree/main/examples
here. Using consistent naming and renaming the existing example to have -http-
since it uses direct HTTP requests rather than api/

Updates #2840

examples/go-http-generate/main.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+)
+
+func main() {
+	body := []byte(`{"model":"mistral"}`)
+	resp, err := http.Post("http://localhost:11434/api/generate", "application/json", bytes.NewBuffer(body))
+
+	if err != nil {
+		fmt.Print(err.Error())
+		os.Exit(1)
+	}
+
+	defer resp.Body.Close()
+	
+	responseData, err := io.ReadAll(resp.Body)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println(string(responseData))
+
+}