Added a way to specificy which structures are to be initially displayed (the default being ALL structures displayed) + the loader maintains a list of structure display state, that can be modified continuously + the cache now takes the initial list of structure into account for computing the entry + added methods to change the loaded structure visibility + disabled the alternate loaders (DicomStructureSetLoader2 and friends) + disabled corresponding tests

{
  "Plugins": [
    "/usr/local/share/orthanc/plugins/libOrthancWebViewer.so",
    "/usr/local/share/orthanc/plugins/libServeFolders.so"
  ],
  "StorageDirectory" : "/var/lib/orthanc/db",
  "IndexDirectory" : "/var/lib/orthanc/db",
  "RemoteAccessAllowed" : true,
  "AuthenticationEnabled" : false,
  "ServeFolders" : {
    "AllowCache" : false,
    "GenerateETag" : true,
    "Folders" : {
      "/stone" : "/root/stone"
    }
  }
}