[Feature] New event creation form

[HugoGresse]

Allow any users connected to the admin to create from zero a new event.
He will have to:

1. Select the project name
2. Fill the additional infos (schedule link, website link, smallLogo, favicon, admin email)

Next he should be asked with tho option before validation the new project:

1. Recommenced setup (in this case the data will stored inside firestore, project type will be native).
2. Advanced:
   • with Hoverboardv2
   • with json link

Upon 1. selection, you can create the event directly
Upon 2. selection, you need to ask addtional infor for each type:
For hoverboardv2:

firebaseConfig : {
    apiKey: "",
    databaseURL: "",
    projectId: ""
}

For json link: the link of the json file. When filled, do a separate process to validate the formating of the file content and allow the user to create the project only if well formatted. Probably indicate the format too somewhere.

Design not ready, cc @LaurianeGresse

[HugoGresse]

Closed by #167