message: Improve conan integration by using cmake install
diff: # Project home: https://github.com/ericniebler/range-v3
  #
  -from conans import ConanFile
  +from conans import ConanFile, CMake
  class Rangev3Conan(ConanFile):
  name = "range-v3"
  license = "Boost Software License - Version 1.0 - August 17th, 2003"
  url = "https://github.com/ericniebler/range-v3"
  description = """Experimental range library for C++11/14/17"""
  - exports_sources = "include*", "LICENSE.txt"
  + exports_sources = "include*", "LICENSE.txt", "CMakeLists.txt", "cmake/*", "Version.cmake", "version.hpp.in"
  build_policy = "missing"
  + def build(self):
  + pass
  +
  def package(self):
  - self.copy("*.hpp", src="include", dst="include", keep_path=True)
  + cmake = CMake(self)
  + cmake.definitions["BUILD_TESTING"] = "OFF"
  + cmake.definitions["RANGE_V3_EXAMPLES"] = "OFF"
  + cmake.definitions["RANGE_V3_PERF"] = "OFF"
  + cmake.definitions["RANGE_V3_DOCS"] = "OFF"
  + cmake.configure()
  + cmake.install()
  +
  self.copy("LICENSE.txt", dst="licenses", ignore_case=True, keep_path=False)
  +
  + def package_info(self):
  + self.info.header_only()
  