ReSolve::io::writeMatrixToFile calls Sparse::print, which writes out 0-indexed coordinates of matrix data, when the matrix market coordinate format is 1-indexed

[superwhiskers]

the implementation of ReSolve::io::writeMatrixToFormat writes the matrix market coordinate data as 0-indexed, when it is specified to be 1-indexed. this makes matrix market files generated by resolve unreadable to any matrix market implementation, including resolve itself

[pelesh]

We use the print function mainly for debugging and there we want 0-based indices. In #184, I added option to choose 1- or 0-based indexing with 1-based indexing used in matrix export.