Create Django models

[BigCheeze45]

Create Django models for tables in the vms schema as described here. AAU reference tables.

Django model docs

• [x] Volunteer
• [x] Team
• [x] TeamCategory
• [x] Address
• [x] County
• [x] VolunteerTeam
• [x] VolunteerMilestone
• [x] VolunteerActivity
• [x] VolunteerSkill
• [x] SkillCategory - [ ] VolunteerChildren - [ ] PetBreed - [ ] VolunteerPet - [ ] PetCategory

1. Organize models into packages & models field reference
2. Generate migrations for each model/change (Django migrations docs)
3. Each model also needs a serializer and view (DRF serialization docs & additional docs) - related => #21.
4. Implement automated tests (Testing in Django)

[BigCheeze45]

@tstoyano

• VolunteerSkill & SkillCategory

@rstoyano

• VolunteerActivity & VolunteerMilstone

@waverlymomo

• Team & Volunteer

@rodcaballero

• Address & County

@BigCheeze45

• TeamCategory & VolunteerTeam

Note: the last 4 tables are being considered as stretch goals for now (9/22)