Create core package

...ava/com/futo/circles/core/BaseFullscreenDialogFragment.kt

...n/java/com/futo/circles/core/BaseRecycleViewDecoration.kt

app/src/main/java/com/futo/circles/core/BaseRecyclerView.kt

app/src/main/java/com/futo/circles/core/Constants.kt

app/src/main/java/com/futo/circles/core/IdEntity.kt

app/src/main/java/com/futo/circles/core/ReflectionUtils.kt

...circles/feature/create_group/CreateGroupDialogFragment.kt

...rcles/feature/group_invite/InviteMembersDialogFragment.kt

...o/circles/feature/group_timeline/GroupTimelineFragment.kt

...rcles/feature/group_timeline/list/GroupTimelineAdapter.kt

...es/feature/group_timeline/list/GroupTimelineViewHolder.kt

...a/com/futo/circles/feature/groups/list/GroupViewHolder.kt

...com/futo/circles/feature/groups/list/GroupsListAdapter.kt

.../manage_group_members/ManageGroupMembersDialogFragment.kt

...eature/manage_group_members/list/GroupMemberViewHolder.kt

...ture/manage_group_members/list/GroupMembersListAdapter.kt

...eature/select_users/list/search/InviteMemberViewHolder.kt

...elect_users/list/search/InviteMembersSearchListAdapter.kt

...ture/select_users/list/selected/SelectedUserViewHolder.kt

...re/select_users/list/selected/SelectedUsersListAdapter.kt