added foundation::AttributeSet::reserve_attributes().
added foundation::AttributeSet::reserve_attributes().

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