Number of edits:
1) re-renamed the 1D/2D situation.
   Names reflect the data dimensionality, and not the dimensionality of the tile.
2) Unified graphs by dimension. There is now only a Jacobi-1D and Jacobi-2D graphs.
Several things:
1) re-renamed files, from plain "Diamond-Tiling" to "Sliced-Diamond-Tiling"
   I figured that this will ease some headaches when we get regular, unsliced Diamond Tiling
2) Added the OpenMP C versions for 1- & 2-D, of Naive-Parallel and Sliced-Diamond-Tiling
Merge pull request #753 from ian-bertolacci/master

CSU Jacobi Tests

There are several changes in this commit:
1. Files have been renamed to accurately reflect the dimensions of the data, as opposed to the dimensions of the tiles; as well as accurately reflect the style of tiling
2. Our OpenMP comparisons that we are using to compare with Chapel have been added. 
3. Performance Graphs have been grouped by the dimensions of the data, as opposed to a separate graph for each test.

- @ian-bertolacii