message: read python library and python include directory from PYTHON_LIB and  PYTHON_INC_DIR
diff: @@ -13,7 +13,7 @@ endif()
  add_library(python3.6m SHARED IMPORTED)
  -set_property(TARGET python3.6m PROPERTY IMPORTED_LOCATION "/Users/newworld/anaconda/lib/libpython3.6m.so")
  +set_property(TARGET python3.6m PROPERTY IMPORTED_LOCATION $ENV{PYTHON_LIB})
  add_custom_command(
  OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/eosapi.wrap.cpp
  @@ -45,7 +45,7 @@ target_link_libraries( pyeos appbase account_history_api_plugin account_history_
  python3.6m boost_python3-mt)
  target_include_directories( pyeos PUBLIC ${CMAKE_SOURCE_DIR}/contracts
  - PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include" "/Users/newworld/anaconda/include/python3.6m"
  + PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include" $ENV{PYTHON_INC_DIR}
  PUBLIC ${CMAKE_SOURCE_DIR}/plugins/wallet_plugin/include
  PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include"
  )
  