StocardImporter: refactor (#1443)

* StocardImporter: refactor

* StocardImporter: trim CSV fields

* LoyaltyCard: add .toString()

* StocardRecord: add .toString()

* StocardImporter: handle usages better

* StocardImporter: use label

* ImportExportTest: add importStocard2 + stocard2.zip

* StocardImporter: iterate over card map in key order

* StocardImporter: cleanup, handle label better, use providers file

* make spotbugs happy

* StocardImporter: can't use providersFileName, list known files, log unknown

* StocardImporter: fix regex, log properly, s/Provider/Store/

* StocardImporter: test /usages/ timestamp, nicer if/else flow

* StocardImporter: fix label usage

* StocardImporter: remove label prefix, improve error

app/src/main/java/protect/card_locker/LoyaltyCard.java

@@ -8,6 +8,7 @@ import java.math.BigDecimal;
 import java.util.Currency;
 import java.util.Date;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 public class LoyaltyCard implements Parcelable {
@@ -166,6 +167,31 @@ public class LoyaltyCard implements Parcelable {
         return id;
     }
 
+    @NonNull
+    @Override
+    public String toString() {
+        return String.format(
+                "LoyaltyCard{%n  id=%s,%n  store=%s,%n  note=%s,%n  validFrom=%s,%n  expiry=%s,%n"
+                        + "  balance=%s,%n  balanceType=%s,%n  cardId=%s,%n  barcodeId=%s,%n  barcodeType=%s,%n"
+                        + "  headerColor=%s,%n  starStatus=%s,%n  lastUsed=%s,%n  zoomLevel=%s,%n  archiveStatus=%s%n}",
+                this.id,
+                this.store,
+                this.note,
+                this.validFrom,
+                this.expiry,
+                this.balance,
+                this.balanceType,
+                this.cardId,
+                this.barcodeId,
+                this.barcodeType != null ? this.barcodeType.format() : null,
+                this.headerColor,
+                this.starStatus,
+                this.lastUsed,
+                this.zoomLevel,
+                this.archiveStatus
+        );
+    }
+
     public static final Creator<LoyaltyCard> CREATOR = new Creator<LoyaltyCard>() {
         @Override
         public LoyaltyCard createFromParcel(Parcel in) {