added .gitignore file to sandbox/tests/unit tests/outputs/
added .gitignore file to sandbox/tests/unit tests/outputs/

dictoon/appleseed,docwhite/appleseed,est77/appleseed,Biart95/appleseed,luisbarrancos/appleseed,aiivashchenko/appleseed,Vertexwahn/appleseed,gospodnetic/appleseed,Vertexwahn/appleseed,aytekaman/appleseed,Biart95/appleseed,aytekaman/appleseed,aytekaman/appleseed,Vertexwahn/appleseed,glebmish/appleseed,pjessesco/appleseed,luisbarrancos/appleseed,glebmish/appleseed,appleseedhq/appleseed,Vertexwahn/appleseed,docwhite/appleseed,aiivashchenko/appleseed,gospodnetic/appleseed,docwhite/appleseed,Aakash1312/appleseed,appleseedhq/appleseed,Aakash1312/appleseed,Aakash1312/appleseed,pjessesco/appleseed,gospodnetic/appleseed,appleseedhq/appleseed,dictoon/appleseed,gospodnetic/appleseed,appleseedhq/appleseed,docwhite/appleseed,Aakash1312/appleseed,Aakash1312/appleseed,glebmish/appleseed,est77/appleseed,glebmish/appleseed,aiivashchenko/appleseed,est77/appleseed,appleseedhq/appleseed,Vertexwahn/appleseed,aytekaman/appleseed,pjessesco/appleseed,est77/appleseed,aiivashchenko/appleseed,dictoon/appleseed,pjessesco/appleseed,luisbarrancos/appleseed,Biart95/appleseed,gospodnetic/appleseed,luisbarrancos/appleseed,glebmish/appleseed,Biart95/appleseed,pjessesco/appleseed,docwhite/appleseed,aytekaman/appleseed,dictoon/appleseed,Biart95/appleseed,luisbarrancos/appleseed,dictoon/appleseed,est77/appleseed,aiivashchenko/appleseed