Upgrade to fuzzylite 6.0 as a submodule

cmake_modules/FindFuzzyLite.cmake

@@ -0,0 +1,57 @@
+#.rst:
+# FindFuzzylite
+# --------
+#
+# Locate FuzzyLite library
+#
+#=============================================================================
+# Copyright 2003-2009 Kitware, Inc.
+# Copyright 2012 Benjamin Eikel
+# Copyright 2014 Mikhail Paulyshka
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file kitware license.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+find_path(FL_INCLUDE_DIR 
+    fl/fuzzylite.h
+  HINTS
+    ENV FLDIR
+  PATH_SUFFIXES
+    fl
+    include/fl 
+    include
+)
+
+if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+  set(VC_LIB_PATH_SUFFIX lib/x64)
+else()
+  set(VC_LIB_PATH_SUFFIX lib/x86)
+endif()
+
+find_library(FL_LIBRARY
+  NAMES 
+    fuzzylite
+  HINTS
+    ENV FLDIR
+  PATH_SUFFIXES 
+    dynamic
+    lib
+    ${VC_LIB_PATH_SUFFIX}
+)
+
+set(FL_LIBRARIES ${FL_LIBRARY})
+set(FL_INCLUDE_DIRS ${FL_INCLUDE_DIR})
+
+include(FindPackageHandleStandardArgs)
+
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(FL
+                                  REQUIRED_VARS FL_LIBRARIES FL_INCLUDE_DIRS)
+
+mark_as_advanced(FL_LIBRARY FL_INCLUDE_DIR)