Add Git ignore and attribute pattern

Added the `.gitattributes` (1) and `.gitignore` (2) configuration files
for pattern handling that are matching the latest "Arctic Ice Studio"
project design standards/guidelines.

References:
  (1) https://git-scm.com/docs/gitattributes
  (2) https://git-scm.com/docs/gitignore

Epic: GH-33
Blocks GH-48
Depends on GH-49
Resolves GH-35

.gitattributes

@@ -0,0 +1,13 @@
+# Copyright (C) 2017-present Arctic Ice Studio <development@arcticicestudio.com>
+# Copyright (C) 2017-present Sven Greb <development@svengreb.de>
+#
+# Project:    snowsaw
+# Repository: https://github.com/arcticicestudio/snowsaw
+# License:    MIT
+# References:
+#   https://git-scm.com/docs/gitattributes
+#   https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#Keyword-Expansion
+
+# Automatically perform line feed (LF) normalization for files detected as text and
+# leave all files detected as binary untouched.
+* text=auto

.gitignore

@@ -0,0 +1,6 @@
+# Copyright (C) 2017-present Arctic Ice Studio <development@arcticicestudio.com>
+# Copyright (C) 2017-present Sven Greb <development@svengreb.de>
+#
+# Project:    snowsaw
+# Repository: https://github.com/arcticicestudio/snowsaw
+# License:    MIT

LICENSE.md

@@ -1,7 +1,7 @@
 MIT License (MIT)
 
-Copyright (C) 2019-present Arctic Ice Studio <development@arcticicestudio.com> (https://www.arcticicestudio.com)  
-Copyright (C) 2019-present Sven Greb <development@svengreb.de> (https://www.svengreb.de)
+Copyright (C) 2017-present Arctic Ice Studio <development@arcticicestudio.com> (https://www.arcticicestudio.com)  
+Copyright (C) 2017-present Sven Greb <development@svengreb.de> (https://www.svengreb.de)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal