Hunterize v3.10.0

* Added Hunter and HunterGate from cpp-pm
* Added CMakeLists.txt adjusted from 'Hunterize v3.0.0'

Author: hjmallon

CMakeLists.txt

@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.2)
+
+include("cmake/HunterGate.cmake")
+HunterGate(
+    URL "https://github.com/cpp-pm/hunter/archive/v0.23.222.tar.gz"
+    SHA1 "0b88baaa2a9a35b8ce632c57ade66be8dd918afd"
+)
+
+# Project
+project(protobuf C CXX)
+
+hunter_add_package(ZLIB)
+
+add_subdirectory(cmake)