Issue #65 - Model Implementation: Add a v1 of the implementation

[PharaEthan]

Description

This pull-request implement the backend side of the model implementation.

Related Issue(s)

#65

Changes Made

• Company:
  • Remove localization.
  • Add a isPartner boolean, used for the website logos section.
  • Add a company website field and a link to the quotation content type.
• Attestant:
  • Remove localization.
  • Add contact fields (phone & email).
• QuotationGame:
  • All needed value for create a game quotation.
• Quotation:
  • The final value of a quotation, it contains services informations, budget, game informations, company

Testing

Manual testing, with an development environment that includes Insomnia and website localhost version.

Checklist

• I have tested these changes thoroughly.
• The code follows the project's style guide and coding conventions.
• I have updated the relevant documentation (if applicable).
• All tests passed successfully.
• I have checked for any potential conflicts with other branches.