First Edit to Structures

Changed the comment of pd.pp.x
Changed Nx, Ny, Bi and Ar
Also changed comments of pd.pp and pd.pp2
Reflected DataRead to Structs, fixes #7
More Structs. -res, more Tri

Affects #4 and #6
Added new.h

Will try to implement in new branch.
Merge pull request #10 from MarkNais/Structures

Expected Structuers