Revert "Remove example project"

This reverts commit e38821fcdf2cc4a7d4dd4ab1f919c73c311a29ef.

Conflicts:
	HTUInviteKit/Core/HTUInviteTemplate.h
	HTUInviteKit/Core/HTUInviteTemplate.m
[Example] Remove unused files
Remove pods directory from example
Example, make iPhone only
[Example] Implement example
[HTUInvitePickerViewController] Keep a reference to the active inviter to avoid it being deallocated
[SMS Invite] Initial implementation
[Facebooke Messenger] Add initial structure