Add setrep as type parameter in algorithms?

[mforets]

It may be useful to have the setrep as type information, carried over the algorithms, specially for hybrid systems.

In the hybrid post of HACLD1 we workaround that lack of information by preallocating with FT = typeof(flowpipe(sol)), since the method performs an initial flowpipe computation and stores it in the first iteration of the main loop. I don't know how general is that solution though.

[mforets]

PR #117 adds the method rsetrep for algorithms, which returns the reach-set representation that they use.