Added support to extract soundsources from struct as either struct or cell.

lib/+artoa/+data/extractSoundsourcesFromStruct.m

-function [extractedSoundsources] = extractSoundsourcesFromStruct(pSourcesToExtract, pSoundsources)
+function [extractedSoundsources] = extractSoundsourcesFromStruct(pSourcesToExtract, pSoundsources, pAsStruct)
 %EXTRACTSOUNDSOURCESFROMARRAY Summary of this function goes here
 %   Detailed explanation goes here
 
+%% Parameter check
+if nargin == 2
+    pAsStruct = false;
+end
+
+%% Return as structure if requested
+if pAsStruct
+    extractedSoundsources = createStruct();
+    return;
+end
+
 %% Initialize return variable
 extractedSoundsources = {};
 
@@ -13,5 +24,15 @@ for i = 1:length(pSourcesToExtract)
     end
 end
 
+    function [extractedSoundsources] = createStruct()
+        extractedSoundsources = struct();
+        for o = 1:length(pSourcesToExtract)
+            if ~isfield(pSoundsources, pSourcesToExtract{o})
+                continue;
+            end
+            extractedSoundsources.(pSourcesToExtract{o}) = pSoundsources.(pSourcesToExtract{o});
+        end
+    end
+
 end