A preliminary .gitignore file, to prevent us checking in files unnecessary. (#18)

https://github.com/github/gitignore.

.gitignore

@@ -0,0 +1,19 @@
+# Ignore MacOS file system related.  
+**/*.DS_Store*
+
+# Ignore build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+[Ll]ogs/
+
+# Visual Studio cache/options directory
+.vs/
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc