add files for public distribution

based on internal repository 0a462b6 2017-11-22 14:41:39 +0100

.gitattributes

@@ -0,0 +1,23 @@
+# Set the default behavior, in case people don't have core.autocrlf set.
+* text=auto
+
+# Explicitly declare text files you want to always be normalized and converted
+# to native line endings on checkout.
+*.c text
+*.cpp text
+*.f text
+*.h text
+*.i text
+*.m text
+*.py text
+*.pyf text
+makefile text
+README text
+
+# Declare files that will always have CRLF line endings on checkout.
+*.bat text eol=crlf
+*.vc text eol=crlf
+
+# Denote all files that are truly binary and should not be modified.
+*.png binary
+*.jpg binary