Removal of duplicate patterns

Following duplicate patterns were removed:

removed chevron from patterns.svg
removed inverted circle from patterns.svg
removed bricks from patterns.svg
removed cubes from patterns.svg
removed circles form halftones.svg
removed decorative paper from patterns.svg and
addition of colorizable property to decorative paper
removed ermine from patterns.svg
removed floor tiles form patterns.svg
removed hexagons from patterns.svg
removed packed circles from patterns.svg
removed wire fence from patterns.svg
removed zig zag from patterns.svg

Resolves: #4275