FIXED CamiTK 4.0 needs CMake 3.0 at least

cd4113b1 · Jean-Loup Haberbusch · 188c74b1 · cd4113b1
Commit cd4113b1 authored Jul 22, 2016 by Jean-Loup Haberbusch
--- a/sdk/libraries/cepgenerator/resources/cep.CMakeLists.txt.in
+++ b/sdk/libraries/cepgenerator/resources/cep.CMakeLists.txt.in
 #--------------------------------------------
 #         CamiTK Extension Project
 #--------------------------------------------
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)

 # Find CamiTK SDK
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR})