Add bazel support and allow for objective_ template initialization

BUILD.bazel

@@ -0,0 +1,14 @@
+"""psocpp library for Bazel"""
+
+load("@rules_cc//cc:defs.bzl", "cc_library")
+
+licenses(["notice"])  # MIT
+
+package(default_visibility = ["//visibility:public"])
+
+cc_library(
+    name = "psocpp",
+    hdrs = glob(["include/*.h"]),
+    includes = ["include"],
+    deps = ["@eigen"],
+)

MODULE.bazel

@@ -0,0 +1,6 @@
+"""psocpp module"""
+
+module(name = "psocpp")
+
+bazel_dep(name = "rules_cc", version = "0.2.14")
+bazel_dep(name = "eigen", version = "5.0.1")

include/psocpp.h

@@ -473,8 +473,9 @@ namespace pso
 
     public:
 
-        ParticleSwarmOptimization()
-            : objective_(), callback_(), weightStrategy_(), threads_(1),
+        template<typename... Args>
+        ParticleSwarmOptimization(Args&&... args)
+            : objective_(std::forward<Args>(args)...), callback_(), weightStrategy_(), threads_(1),
             maxIt_(0), xeps_(static_cast<Scalar>(1e-6)),
             feps_(static_cast<Scalar>(1e-6)), phip_(static_cast<Scalar>(2.0)),
             phig_(static_cast<Scalar>(2.0)), maxVel_(static_cast<Scalar>(0.0)),
@@ -577,6 +578,18 @@ namespace pso
             weightStrategy_ = weightStrategy;
         }
 
+        void setDice(const std::function<Scalar()> &dice)
+        {
+            dice_ = dice;
+        }
+
+        template <class RandomEngine>
+        void setGen(RandomEngine gen)
+        {
+            std::uniform_real_distribution<Scalar> distrib(0.0, 1.0);
+            dice_ = std::bind(distrib, std::forward<RandomEngine>(gen));
+        }
+
         /** Perform minimization with the given bounds and number of particels.
           *
           * The swarm of particles will be drawn uniform randomly within the