add lender groups module
add view for create group
add controller for create group
add group_members module
fake data for lender groups
view for groups
controller for group members
small fix
small fixes
small fix
add member raw only if it was not joined before
changes in modules names
add edit form for lending groups
add controller for edit lending groups
small fix
small fixes
re naming files
small fix
add Leader can't lave the group
add link in footer for groups