added simkl login to backend

SimklFunctions.go

@@ -1 +1,36 @@
 package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+	"log"
+	"net/http"
+)
+
+func SimklQuery(body interface{}, login bool) (json.RawMessage, string) {
+	reader, _ := json.Marshal(body)
+	response, err := http.NewRequest("POST", "https://graphql.anilist.co", bytes.NewBuffer(reader))
+	if err != nil {
+		log.Printf("Failed at response, %s\n", err)
+	}
+	if login && (SimklJWT{}) != simklJwt {
+		response.Header.Add("Authorization", "Bearer "+simklJwt.AccessToken)
+	} else if login {
+		return nil, "Please login to anilist to make this request"
+	}
+	response.Header.Add("Content-Type", "application/json")
+	response.Header.Add("Accept", "application/json")
+
+	client := &http.Client{}
+	res, reserr := client.Do(response)
+	if reserr != nil {
+		log.Printf("Failed at res, %s\n", err)
+	}
+
+	defer res.Body.Close()
+
+	returnedBody, err := io.ReadAll(res.Body)
+
+	return returnedBody, ""
+}