Added data object and factory for sediment load calculation. The factory provides two methods to get sediment load data: The first is to get an array of loads for a specific range at a river, these loads contain the time and description. The second is to get a single sediment load with time, description and data values.

<?xml version="1.0" encoding="UTF-8" ?>
<datacage>
    <user>SA</user>
    <password></password>
    <url>jdbc:h2:${artifacts.config.dir}/../datacagedb/datacage</url>
</datacage>