Trac #22491: make lrslib and lidia a build-time dependencies of latte_int

The `lrslib` and `lidia` optional package improve `latte_int`
capabilities, but they need to be installed when `latte_int` get
compiled. Through it is not strictly necessary to compile `latte_int`, i
propose to add it as a (build-time) dependency.

`lrslib` can be used by using `count --compute-vertex-cones=lrs` (this
is also exposed as a keyword argument of `ehrhart_polynomial`).

`lidia` matters for `count --irrational-primal --maxdet=1000` (these are
also exposed as keyword arguments).

URL: https://trac.sagemath.org/22491
Reported by: tmonteil
Ticket author(s): Thierry Monteil
Reviewer(s): Vincent Delecroix

Author: Release Manager

build/pkgs/latte_int/dependencies

@@ -1,4 +1,4 @@
-$(MP_LIBRARY) ntl 4ti2 cddlib
+$(MP_LIBRARY) ntl 4ti2 cddlib lrslib lidia
 
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