get_header not working for the DataParser class
DataParser header_ property is working.
make changes to command finding algo
create HeaderMap typedef
add get_address, get_data to DataRow

The DataRow class no longer automatically parses the line.  It will only parse the address during construction.  This allows us to identify commands first, then parse the data value.  After we find a command, then we can call the parse_row method to get all the data from the line.  It would be even better to have a 'command' class that only parses the specific data it needs to keep the speed up.
Remove debugging output from main.
Update comments on the class files.
Update comments for the datarow class.
Merge branch 'clean_datarow'

Conflicts:
	src/datarow.cpp
	src/datarow.h

Removed most of prior work in Master and merged in the updates from clean_datarow.  Discussed usage of DataRow with team.
Merge branch 'master' of https://github.com/CS254Lab6/RawCommandParser