Changed spelling to US english

Author: raulbob

sormas-api/src/main/java/de/symeda/sormas/api/exposure/TypeOfChildcareFacility.java

@@ -21,8 +21,8 @@ public enum TypeOfChildcareFacility {
 
 	NURSERY_CRECHE,
 	NURSERY_SCHOOL,
-	CHILDMINDER_CENTRE,
-	CHILDCARE_CENTRE,
+	CHILDMINDER_CENTER,
+	CHILDCARE_CENTER,
 	SCHOOL,
 	OTHER;