Added erase pattern for double redundant transpose ops

[LeslieXMOS]

Added an erase pattern such that redundant transpose ops will be eliminate from the graph

For example

The three transpose ops will be eliminated, as they are doing nothing.
This PR will make the final graph like this

[henkmuller]

That looks great - I am adding Andrew Stanford-Jason for a review

[LeslieXMOS]

Added three model here to prove this is working and how it will work
model1.tflite.txt
model2.tflite.txt
model3.tflite.txt

1. model 1 show how bypass work
   to

2. model 2 show how it will only bypass equivant transpose pair
   to

3. model 3 show how good it is
   to