[MLIR][Presburger] Template Matrix to allow MPInt and Fraction; use IntMatrix...

[MLIR][Presburger] Template Matrix to allow MPInt and Fraction; use IntMatrix for integer matrices (#66897)

Matrix has been templated to Matrix (for MPInt and Fraction) with
explicit instantiation for both these types.
IntMatrix, inheriting from Matrix<MPInt>, has been created to allow for
integer-only methods.
makeMatrix has been duplicated to makeIntMatrix and makeFracMatrix.

This was already landed previously but was reverted in
98c994c8 due to build failure. This
fixes the failure.