Adding function to read xml file to dot file, along with a topology.x…#31

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sappyb wants to merge 3 commits intohpcgroup:developfrom

sappyb:graphXml

Commits on Jun 13, 2019

Adding function to read xml file to dot file, along with a topology.xml file which is a quartz topology and test.xml which is a small topology for testing
Saptarshibh
committed

Commits on Jun 18, 2019

Adding the changes suggested, put all the files in utils, and adding a test script to run the file
Saptarshibh
committed
Made the numbers hexadecimal
Saptarshibh
committed