Improve error messages for input argument type checks

Updated error messages in GannetCoRegister, GannetFit, GannetQuantify, GannetSegment, and PaperPlot to specify the received input type when the first argument is not a structure. Also updated the version string in GannetQuantify to '250911'.

Author: markmikkelsen

GannetCoRegister.m

@@ -12,7 +12,7 @@
 
 if ~isstruct(MRS_struct)
     fprintf('\n');
-    error('The first input argument ''%s'' must be a structure.', MRS_struct);
+    error('The first input argument must be a structure, but received %s.', class(MRS_struct));
 end
 
 if nargin == 2

GannetFit.m

@@ -8,7 +8,7 @@
 
 if ~isstruct(MRS_struct)
     fprintf('\n');
-    error('The first input argument ''%s'' must be a structure.', MRS_struct);
+    error('The first input argument must be a structure, but received %s.', class(MRS_struct));
 end
 
 MRS_struct.info.datetime.fit = datetime('now');

GannetQuantify.m

@@ -8,11 +8,11 @@
 
 if ~isstruct(MRS_struct)
     fprintf('\n');
-    error('The first input argument ''%s'' must be a structure.', MRS_struct);
+    error('The first input argument must be a structure, but received %s.', class(MRS_struct));
 end
 
 MRS_struct.info.datetime.quantify = datetime('now');
-MRS_struct.info.version.quantify = '250910';
+MRS_struct.info.version.quantify = '250911';
 
 if MRS_struct.p.PRIAM
     vox = MRS_struct.p.vox;

GannetSegment.m

@@ -13,7 +13,7 @@
 
 if ~isstruct(MRS_struct)
     fprintf('\n');
-    error('The first input argument ''%s'' must be a structure.', MRS_struct);
+    error('The first input argument must be a structure, but received %s.', class(MRS_struct));
 end
 
 MRS_struct.info.datetime.segment = datetime('now');

PaperPlot.m

@@ -69,7 +69,7 @@ function PaperPlot(MRS_struct, varargin)
 
 if ~isstruct(MRS_struct)
     fprintf('\n');
-    error('The first input argument ''%s'' must be a structure.', MRS_struct);
+    error('The first input argument must be a structure, but received %s.', class(MRS_struct));
 end
 
 % Set some defaults