IVGCVSW-2367 Add Equal Operator to TfParser

* Unit tests in Equal.cpp
* Fixed error in Network::AddEqualLayer
* Refactored TfParser::Minimum/Equal to get rid of duplicate code

Change-Id: I0ed6f888eb391c995b88be20dc0c1b916dd14c3c
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2f35e82..37d5f7b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -395,6 +395,7 @@
             src/armnnTfParser/test/Concat.cpp
             src/armnnTfParser/test/ConcatOfConcats.cpp
             src/armnnTfParser/test/DepthwiseConvolution2d.cpp
+            src/armnnTfParser/test/Equal.cpp
             src/armnnTfParser/test/ExpandDims.cpp
             src/armnnTfParser/test/FusedBatchNorm.cpp
             src/armnnTfParser/test/Identity.cpp