Implement this method to return the short name of the server. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2015 
Syntax
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Return Value
The short name of the server.Remarks
 The name is a unique path prefix included in full paths to external resources provided by this server. It is recommended that the short name length is at least 3 characters to make it useful for users to identify the server easily. 
 To ensure the server can be registered successfully, the name should match restrictions below:
- The name cannot be empty or consist of only whitespace characters.
- The name should not include any invalid characters such as \/:*?"<>|.
- The name cannot duplicate any other external resource server names.
- The name should not duplicate a Revit reserved path prefix(case insensitive), including: RSN, A360, buzzsaw, vault, redspark, ftp, http, https, files, file.