Added relevant files from NeHe Tutorials Lesson 08

Extracted from LessonEightLiveWallpaper.zip
SHA1: 772227527fbedbf8a41bc3fb79976f7f5026eff2
MD5:  dd229f592fd63c8f6d63f76474118cb2
Merged XML values from NeHe Tutorials Lesson 08
Converted line ending to LF (Unix style) in new source files
Fixed package names and import statements to reflect new structure
Fixed import of GLWallpaperService class
Fixed compile issue caused by @override annotations
Fixed problem where R.java was not being generated due to missing drawable reference in XML
Fixed import of R.java
Fixed reference to a drawable that has been renamed
Fixed manifest XML android:name declarations to use fully qualified package name
Fixed whitespace and imports.
Fixed reference to NeHe Lesson 08 settings Activity to prevent crash
Updated NeHe Lesson 08 label and description for live wallpaper picker screen
Added image files for NeHe Lesson 08 live wallpaper thumbnail

Sizes follow the 3:4:6:8 ratio

ldpi:  72x72
mdpi:  96x96
hdpi:  144x144
xhdpi: 192x192
Assigned thumbnail images to NeHe Lesson 08 live wallpaper
Removed unused width member to fix warning
Moved\renamed NeHe Lesson 08 files to conform to a consistent naming convention
Removed unused settings.xml
Removed unused reference to Shared Preference name for Nehe Lesson 02
Added TODO comment to make Lesson 08 settings functional