Add currency to character sheet (#60)

Changes:
 + add fields to track currency
 + show value of standard items

lang/de.json

@@ -91,6 +91,10 @@
 	"midgard5.origin": "Heimat",
 	"midgard5.faith": "Glaube",
 
+	"midgard5.currency-gold": "Gold",
+	"midgard5.currency-silver": "Silber",
+	"midgard5.currency-copper": "Kupfer",
+
 	"midgard5.exp-overall": "Erfahrungsschatz",
 	"midgard5.exp-available": "Erfahrungspunkte",
 	"midgard5.grace": "Göttliche Gnade",
@@ -197,8 +201,8 @@
 	"midgard5.enduranceBonus": "Ausdauerbonus",
 	"midgard5.lpProtection": "Rüstungsschutz (LP)",
 	"midgard5.apProtection": "Rüstungsschutz (AP)",
-	"midgard5.perception" : "Wahrnehmung",
-	"midgard5.drinking" : "Trinken",
+	"midgard5.perception": "Wahrnehmung",
+	"midgard5.drinking": "Trinken",
 
 	"midgard5.new-skill": "Neue Fertigkeit",
 	"midgard5.special": "Spezial",