Implement like action

[Fernando1612]

This RP implements a service to add or remove a like to the post:

• A new service has been created with which you can add or remove a like to a post by clicking a button or double tapping on the post.
• When adding a like to a post, the heart at the bottom left fills up and the counter increases by 1 and when removing a like from a post, the heart at the bottom left is emptied and the counter decreases by 1
• These changes are displayed automatically