implemented Backpack and Unpacking for Looks, but functionality is invisible

continued work on backpack for looks

continued work....created method for copying the image regarding to backpack- needs proof

back pack for looks works

update of LookAdapter needs proof

nullptr execption when starting backpackactivity...

added testcase for backpack look with context menu

small changes

small fixes

detected bug

Stefan is king

added second testcase and refactoring

added BackPackLookAdapter

unpacking of looks works with context menu

small changes...garbage collector for looks has to be fixed

created unpacking for looks and garbage collector

added testcases...tried to fix actionmode

trying to fix the checkbox bug

implemented showDetails

checkboxes are now visible

fixed unpacking of Looks- needs to be refactored

Implementation regarding to backpack and unpacking of looks finished

set BackPack functionality invisible in LookFragment

ready for merge with master