feat: foldable log: add error/warning/info summary in title

refs #519

src/app/components/log/log.component.ts

 import { Component, Input } from "@angular/core";
+import { LogHelper } from "app/results/log-helper";
 import { ApplicationSetupService } from "app/services/app-setup.service";
 
-import { cLog, Message } from "jalhyd";
+import { cLog } from "jalhyd";
 
 import { I18nService } from "../../services/internationalisation.service";
 
@@ -33,11 +34,15 @@ export class LogComponent {
     }
 
     public get uitextTitreJournal() {
+        let res;
         if (this.logTitle) {
-            return this.logTitle;
+            res = this.logTitle;
         } else {
-            return this.intlService.localizeText("INFO_TITREJOURNAL");
+            res = this.intlService.localizeText("INFO_TITREJOURNAL");
         }
+
+        const stats = cLog.messagesStats(this._log.messages);
+        return res + " - " + LogHelper.messagesStatsToString(stats);;
     }
 
     public get hasEntries(): boolean {

src/app/results/log-helper.ts

@@ -47,7 +47,7 @@ export class LogHelper {
         return res;
     }
 
-    private resultElementStatToString(res: any): string {
+    public static messagesStatsToString(res: any): string {
         let ret = "";
         function ccat(n: number, code: MessageCode, b: string): string {
             if (n > 0) {
@@ -69,7 +69,7 @@ export class LogHelper {
 
     public resultElementsStats(index: number): string {
         const res = this.computeResultElementLogStats(index);
-        return this.resultElementStatToString(res);
+        return LogHelper.messagesStatsToString(res);
     }
 
     /*