Add Database integration

[pmakowski23]

Database MongoDb
Db connection via Prisma

Data model

• Guild
  • Id
  • Name
• Project
  • Id
  • Guild Id
  • Name
  • Shortname
  • Users (User[])
  • Github integration
    • Github url
    • Github secret
• User
  • Id
  • Guild Id[]
  • Display Name
  • Username
  • Joined at (date)
  • Roles in project
  • Custom responses
    • Response Id
    • Guild Id
• Event
  • Id
  • Name
  • Created by (User Id)
  • Description
  • Date
  • Time
  • isRecurring
  • Responses
    • User Id[]
    • Response Id