IVGCVSW-4186 Add EXP unit tests for TfLiteParser

 * Updated Documentation
 * Created unit test file

Signed-off-by: Ryan OShea <Ryan.OShea2@arm.com>
Change-Id: Ic8384b5ed21ac53f918860be8a98c0ac7477d0e1
diff --git a/docs/01_parsers.dox b/docs/01_parsers.dox
index 1b581dd..4d3189a 100644
--- a/docs/01_parsers.dox
+++ b/docs/01_parsers.dox
@@ -157,6 +157,7 @@
 - CONCATENATION, Supported Fused Activation: RELU , RELU6 , TANH, NONE
 - CONV_2D, Supported Fused Activation: RELU , RELU6 , TANH, NONE
 - DEPTHWISE_CONV_2D, Supported Fused Activation: RELU , RELU6 , TANH, NONE
+- EXP
 - FULLY_CONNECTED, Supported Fused Activation: RELU , RELU6 , TANH, NONE
 - LOGISTIC
 - L2_NORMALIZATION