Interface to polymake's polyhedral complexes

[mkoeppe]

https://forum.polymake.org/viewtopic.php?f=12&t=566

https://polymake.org/doku.php/documentation/latest/fan/polyhedralcomplex

See: #20877: Meta-ticket: Piecewise functions, polyhedral complexes, piecewise functions of several variables, periodic piecewise functions

CC: @jplab @mo271 @yuan-zhou

Component: geometry

Issue created by migration from https://trac.sagemath.org/ticket/24943

[mkoeppe]

Description changed:

--- 
+++ 
@@ -1,5 +1,7 @@
 
 https://forum.polymake.org/viewtopic.php?f=12&t=566
 
+https://polymake.org/doku.php/documentation/latest/fan/polyhedralcomplex
+
 See: #20877: Meta-ticket: Piecewise functions, polyhedral complexes, piecewise functions of several variables, periodic piecewise functions