Implemented checking if bank supports setting count max entries. Had to adjust Jackson serialization so that and not just JobParameters gets saved and restored and to implement a lot of default constructors for this

fints4k/src/commonMain/kotlin/net/dankito/banking/fints/FinTsClient.kt

@@ -400,7 +400,8 @@ open class FinTsClient(
                     response,
                     bookedTransactions.toList(),
                     listOf(), // TODO: implement parsing MT942
-                    balance
+                    balance,
+                    if (parameter.maxCountEntries != null) parameter.isSettingMaxCountEntriesAllowedByBank else null
                 )
             )
         }

fints4k/src/commonMain/kotlin/net/dankito/banking/fints/response/client/GetTransactionsResponse.kt

@@ -9,6 +9,9 @@ open class GetTransactionsResponse(
     response: Response,
     val bookedTransactions: List<AccountTransaction> = listOf(),
     val unbookedTransactions: List<Any> = listOf(),
-    val balance: Money? = null
-)
-    : FinTsClientResponse(response)
+    val balance: Money? = null,
+    /**
+     * This value is only set if [GetTransactionsParameter.maxCountEntries] was set to tell caller if maxCountEntries parameter has been evaluated or not
+     */
+    var isSettingMaxCountEntriesAllowedByBank: Boolean? = null
+) : FinTsClientResponse(response)