Fixed issue with quotes in pooling type value

src/main/resources/templates/mxnet/elements/GlobalPooling.ftl

         ${element.name} = mx.symbol.Pooling(data=${element.inputs[0]},
             global_pool=True,
             kernel=(1,1),
-            pool_type=${element.poolType},
+            pool_type="${element.poolType}",
             name="${element.name}")
 <#include "OutputShape.ftl">
\ No newline at end of file

src/main/resources/templates/mxnet/elements/Pooling.ftl

@@ -8,7 +8,7 @@
 </#if>
         ${element.name} = mx.symbol.Pooling(data=${input},
             kernel=(${tc.join(element.kernel, ",")}),
-            pool_type=${element.poolType},
+            pool_type="${element.poolType}",
             stride=(${tc.join(element.stride, ",")}),
             name="${element.name}")
 <#include "OutputShape.ftl">
\ No newline at end of file

src/test/resources/architectures/VGG16.cnna

@@ -28,4 +28,4 @@ architecture VGG16(img_height=224, img_width=224, img_channels=3, classes=1000){
     FullyConnected(units=classes) ->
     Softmax() ->
     predictions
-}
+}
\ No newline at end of file