T2.1 As a user (carrier) I should be able to add a trip

[Ahmedheshamnasser]

50 @ahmedsamouka @omarabdelfatah @boudy1522

[boudy1522]

@Ahmedheshamnasser documentation reviewed and accepted

[omarabdelfatah]

@Ahmedheshamnasser scenario reviewed

[ahmedsamouka]

@Ahmedheshamnasser code verified