bridges: Add favicon to bridges missing it

Adds favicon to bridges that support it. Some sites prevent downloading
favicons, those bridges are left untouched.

Affected bridges:

- AutoJMBridge
- BandcampBridge
- BlaguesDeMerdeBridge
- BloombergBridge
- BundesbankBridge
- ChristianDailyReporterBridge
- ContainerLinuxReleasesBridge
- DailymotionBridge
- DiceBridge
- DribbbleBridge
- EliteDangerousGalnetBridge
- ElsevierBridge
- FacebookBridge
- FB2Bridge
- FDroidBridge
- FierPandaBridge
- GooglePlusPostBridge
- JapanExpoBridge
- KATBridge
- KernelBugTrackerBridge
- LegifranceJOBridge
- NotAlwaysBridge
- NyaaTorrentsBridge
- PinterestBridge
- RadioMelodieBridge
- RainbowSixSiegeBridge
- SupInfoBridge
- TagBoardBridge
- TebeoBridge
- TheTVDBBridge
- WhydBridge
- ZoneTelechargementBridge

bridges/FierPandaBridge.php

@@ -7,6 +7,10 @@ class FierPandaBridge extends BridgeAbstract {
 	const CACHE_TIMEOUT = 21600; // 6h
 	const DESCRIPTION = 'Returns latest articles from Fier Panda.';
 
+	public function getIcon() {
+		return self::URI . 'wp-content/themes/fier-panda/img/favicon.png';
+	}
+
 	public function collectData(){
 
 		$html = getSimpleHTMLDOM(self::URI)