add .gitignore;

.gitignore

@@ -0,0 +1,63 @@
+# Ignore thumbnails created by windows
+Thumbs.db
+
+# Ignore files build by Visual Studio
+*.obj
+*.pdb
+*.mdb 	# Mono debug file
+*.user
+*.aps
+*.pch
+*.vspscc
+*_i.c
+*_p.c
+*.ncb
+*.suo
+*.tlb
+*.tlh
+*.bak
+*.cache
+*.ilk
+*.log
+[Bb]in
+[Dd]ebug*/
+*.lib
+*.sbr
+[Oo]bj*/
+#[Rr]elease*/
+[R]elease*/
+_ReSharper*/
+[Tt]est[Rr]esult*
+*.sdf
+*.opensdf
+*.userprefs
+build.mk
+*.prv.xml
+*.pub.xml
+build/
+.vscode/
+package/
+
+# Compiled binary files
+*.exe
+*.dll
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Visual Studio
+.vs