Support Autodesk Fusion urn format for Eagle import.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/22394

common/io/eagle/eagle_parser.cpp

@@ -327,7 +327,8 @@ bool EURN::IsValid() const
         "footprint",
         "library",
         "package",
-        "symbol"
+        "symbol",
+        "fs.file"
     };
 
     if( validAssetTypes.count( assetType ) == 0 )

common/io/eagle/eagle_parser.h

@@ -428,6 +428,9 @@ struct EAGLE_BASE
  *   The "/<VERSION>" is omitted when referencing the asset without specifying a particular version.
  *   For example, "urn:adsk.eagle:component:60986/2" references version 2 of component 60986 and
  *   "urn:adsk.eagle:library:60968" references library 60986 without specifying a version.
+ * 
+ * Autodesk Fusion can use a different format instead, e.g.:
+ * "urn:adsk.wipprod:fs.file:vf.RSKzNVZVQPeDNm7Bnfr3WQ"
  */
 struct EURN : public EAGLE_BASE
 {