Added dataprovider methods

Still lots of work todo here :)
Temp work
Name changes, and moved classes
Added one todo
Added container to dartprovider, needed for repositorys

And fixed namespace issues
Added extra check on getChartConfigById
Rename from adapter to provider in readme
Merge pull request #20 from arnovr/#2-Refactor-StorageUsageRepository

#2 refactor storage usage repository