Rename files in the parser package

[SaiedKazemi]

Currently, TRC runs scamper to do multipath discovery algorithm (MDA) traceroutes only. MDA traceroutes correspond to the scamper1 datatype.

This is the first commit in a series of commits to add regular traceroute support to traceroute-caller (scamper2 datatype).

There is no functionality change in this commit. The changes were tested locally.

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This change is 

[coveralls]

Pull Request Test Coverage Report for Build 414

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 96.623%

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Totals
Change from base Build 408:	0.0%
Covered Lines:	515
Relevant Lines:	533

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💛 - Coveralls