#1398 Removed dependency on system boost, added subset of boost to ThirdParty

Added a subset of boost to ThirdParty folder. Code extracted from version boost version 1.59.0

ThirdParty/boost-Subset/CMakeLists.txt

@@ -0,0 +1,36 @@
+cmake_minimum_required (VERSION 2.8) 
+
+# Procedure used to extract subset from complete Boost installation
+#
+# 1) Run command line tool bcp to extract required files for filesystem module
+#    http://www.boost.org/doc/libs/1_63_0/tools/bcp/doc/html/index.html#bcp.syntax.options
+#    bcp.exe filesystem --boost="c:/local/boost_1_59_0" d:/gitroot/ResInsight/ThirdParty/boost-Subset
+#
+# 2) Delete the following include folders, as they are large and not required
+#    It is probably possible to exclude more folders, but the dependencies for the remaining folders are quite complex
+#      boost-Subset/boost/preprocessor
+#      boost-Subset/boost/test
+#      boost-Subset/boost/typeof
+
+# 3) Delete following source folders, keep folders 'filesystem' and 'system'
+#      boost-Subset/libs/chrono 
+#      boost-Subset/libs/smart_ptr
+#      boost-Subset/libs/test
+#      boost-Subset/libs/timer
+ 
+project (boost-Subset) 
+ 
+include_directories( 
+. 
+) 
+ 
+add_library( ${PROJECT_NAME} 
+    libs/filesystem/src/codecvt_error_category.cpp 
+    libs/filesystem/src/operations.cpp 
+    libs/filesystem/src/path.cpp 
+    libs/filesystem/src/path_traits.cpp 
+    libs/filesystem/src/portability.cpp 
+    libs/filesystem/src/windows_file_codecvt.cpp 
+	   
+    libs/system/src/error_code.cpp 
+)