Latest updates and bug fixes

[ghtali]

Latest updates:

` README.md | 213 +++++++++++++++++++------------------------------------------------
api/init.py | 8 +++++
api/appointments.py | 63 ++++++++++++++++++++++++++++++++++
api/doctors.py | 43 +++++++++++++++++++++++
api/lab_tests.py | 37 ++++++++++++++++++++
api/patients.py | 47 +++++++++++++++++++++++++
api/prescriptions.py | 51 ++++++++++++++++++++++++++++
app.py | 151 +++++++++++++++++++++++++++++++++++----------------------------------------------
db/init.py | 7 +---
db/database.py | 31 +++++++++++++++++
db/interfaces/init.py | 5 +++
db/interfaces/appointment_repository_interface.py | 26 ++++++++++++++
db/interfaces/doctor_repository_interface.py | 27 +++++++++++++++
db/interfaces/lab_test_repository_interface.py | 27 +++++++++++++++
db/interfaces/patient_repository_interface.py | 27 +++++++++++++++
db/interfaces/prescription_repository_interface.py | 14 ++++++++
db/interfaces/user_repository_interface.py | 11 ++++++
db/models.py | 146 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
db/patient_schema.py | 8 +++++
db/repositories/init.py | 0
db/repositories/appointments_repository.py | 27 +++++++++++++++
db/repositories/doctors_repository.py | 47 +++++++++++++++++++++++++
db/repositories/lab_tests_repository.py | 37 ++++++++++++++++++++
db/repositories/patients_repository.py | 42 +++++++++++++++++++++++
db/repositories/prescriptions_repository.py | 48 ++++++++++++++++++++++++++
db/repositories/users_repository.py | 15 ++++++++
db/repository.py | 166 -----------------------------------------------------------------------------------------
db/schemas.py | 31 +++++++++++++++++
models/init.py | 5 +++
models/appointments.py | 42 ++++++++++++++++++-----
models/base.py | 30 ++++++++++++++++
models/doctors.py | 33 ++++++++++++------
models/lab_tests.py | 31 ++++++++++++-----
models/patients.py | 36 ++++++++++++++------
models/prescriptions.py | 41 ++++++++++++++++------
services/init.py | 12 -------
services/appointments_service.py | 94 ++++++++++++++++++++++++--------------------------
services/doctors_service.py | 55 ++++++++----------------------
services/lab_tests_service.py | 61 ++++++++++++---------------------
services/patients_service.py | 60 ++++++++++++--------------------
services/prescriptions_service.py | 56 ++++++++----------------------
static/script.js | 59 ++++++++++++++++++++++++++++++++
static/style.css | 150 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
template/appointments.html | 27 +++++++++++++++
template/base.html | 32 +++++++++++++++++
template/doctors.html | 24 +++++++++++++
template/home.html | 6 ++++
template/lab_tests.html | 49 ++++++++++++++++++++++++++
template/login.html | 12 +++++++
template/logout.html | 6 ++++
template/patients.html | 43 +++++++++++++++++++++++
utils/init.py | 2 ++
utils/auth.py | 25 ++++++++++++++
utils/validators.py | 18 ++++++++++

`
contributions to the 'develop' branch welcomed!