* correct input list algo in Rcpp volume.cpp

* Improvements in rounding and rotating R functions (#76)

* add seed in rotate_polytope and update Rd files

* update R rounding function to return the linear map

* fix rounding in V-poly

* overloading rotating() function and remove unused comments

* implement zonotope volume computation with cb algorithm and hpoly in MMC

* fix all bugs in new cooling_hpoly algorithm and improve test function

* all tests for zonotopes with c algortihm passed successfully

* implmentation of diameter computation of all convex bodies except Vpoly-intersection

* add Vpolyintersection diameter computation and volume approximation

* new implmentation of rounding

* add rounding in zonotope volume approximation with Hpoly in MMC

* dispatching in ratio estimation

* update ratio estimation functions

* implmemrnt dispatching for diameter computation

* improve ratio estimation code structure

* update declaration of parameters in random walks

* update parameter declaretion for both ball and billiard walks

* modify Rcpp expose for volume and sampling C++ functions

* modify Rcpp rounding function

* update rounding, sampling, volume rcpp dunctions: typedefs and includes

* modify zonotope approximation Rcpp function. minor changes to Rcpp volume and sampling functions

* fix compiler errors

* update d files

* fix compiler errors in c++ tests

* add seed in rounding and direct_sampling Rcpp functions

* add a second volume function to use fixed seed in Rcpp interface