Added class CNNTrain2Caffe2 implementing corresponding interface

See merge request !3

Cmake support

See merge request !2

Updated cnnarch version

See merge request !1

Modified Pooling.ftl: Adapted stride and kernel parameters with same and different height and width.

Corrected Convolution, Pooling and FullyConnected layer templates: Adapted stride with same and different height and width in convolution and pooling layers. Corrected dim_in value in convolution and fullyconnected layers.

# Conflicts:
#	src/main/resources/templates/caffe2/CNNCreator.ftl
#	src/main/resources/templates/caffe2/elements/Pooling.ftl

Fix for missing quotes in eval_metric value.

Add num_epoch and eval_metric training parameters to the CNNTrainer.ftl template and correct target code for corresponding test

Updated pom: cnn-arch version changed to 0.2.3-SNAPSHOT and cnn-train version changed to 0.2.4-SNAPSHOT.
Minor changes in pooling layers.