Add TED Scraper Configuration and Cron Scheduler Implementation

- Introduced a new configuration file for the TED scraper, defining database connection settings, logging preferences, and scraping parameters.
- Implemented a CronScheduler to manage scheduled tasks for TED operations, utilizing the robfig/cron library for scheduling.
- Added new entities and structures for handling TED XML data, including eForms and tender-related information, enhancing the scraper's functionality.
- Updated the main application to initialize the TED scraper with the new configuration and set up graceful shutdown handling.
- Removed the deprecated scraping implementation to streamline the codebase and focus on the new architecture.

ted/calendar.go

@@ -0,0 +1,46 @@
+package ted
+
+import (
+	"bytes"
+	"encoding/csv"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+)
+
+const (
+	calendarUrl = "https://ted.europa.eu/en/release-calendar/-/download/file/CSV/%d"
+)
+
+// Get OJS Number
+func GetOJS(year int, date string) (string, error) {
+	var (
+		ojs string
+	)
+	url := fmt.Sprintf(calendarUrl, year)
+
+	resp, err := http.Get(url)
+	if err != nil {
+		return ojs, err
+	}
+	defer resp.Body.Close()
+
+	// read CSV
+	body, _ := io.ReadAll(resp.Body)
+	reader := csv.NewReader(bytes.NewReader(body))
+	records, _ := reader.ReadAll()
+
+	for _, row := range records[1:] {
+		rowDate := strings.TrimSpace(row[1])
+		if rowDate == strings.TrimSpace(date) {
+			ojs = fmt.Sprintf("%v00%v", year, strings.TrimSpace(fmt.Sprint(row[0])))
+			break
+		}
+	}
+	if ojs == "" {
+		return ojs, fmt.Errorf("can not find ojs number")
+	}
+
+	return ojs, nil
+}