### WMS support - [ ] should be possible to add own WMS sources, and have as layers - [ ] these wms sources should be stored, so only necessary to add once (not for every project, for example) - [ ] these wms sources should be private if user wants. - [ ] should also be possible to access our list of public WMS sources, easily added to map. - [ ] our public WMS sources can be numerous, should be a browsable list - [ ] need a spec for wms sources on server - [ ] need to store our list - as part of the portal, just like baselayers - on server (in a growing `json`). two lists - on ours, one user-added sources. - [ ] GUI: easily browse list, add as layer, add privately or publicly - [ ] need Wu.Layer for WMS sources - [ ] api first, gui second - [ ] tests - [ ] json file
