Added many 4k-ready wallpapers, completely updated look

.idea/misc.xml

.idea/workspace.xml

ICEcons.iml

app/app.iml

app/build.gradle

app/src/main/AndroidManifest.xml

app/src/main/java/ovh/ice/icecons/IceImageUtils.java

app/src/main/java/ovh/ice/icecons/IceScreenUtils.java

app/src/main/java/ovh/ice/icecons/LicenseActivity.java

app/src/main/java/ovh/ice/icecons/MainActivity.java

app/src/main/java/ovh/ice/icecons/WallpaperActivity.java

app/src/main/java/ovh/ice/icecons/WallpaperSetActivity.java

app/src/main/res/drawable-nodpi/bush_thumb.jpg

app/src/main/res/drawable-nodpi/clovers_thumb.jpg

app/src/main/res/drawable-nodpi/daisy_thumb.jpg

app/src/main/res/drawable-nodpi/foam.jpg

app/src/main/res/drawable-nodpi/foam_thumb.jpg

app/src/main/res/drawable-nodpi/ic_apply.png

app/src/main/res/drawable-nodpi/ic_back.png

app/src/main/res/drawable-nodpi/ic_close.png