start init new challenge + build userseason list

src/components/Splash/SplashRoot.tsx

src/db/profileData.json

src/db/seasons/bossEntity.json

src/db/seasons/quizData.json

src/db/seasons/seasonEntity.json

src/doctypes/com-grandlyon-ecolyo-boss.ts

src/doctypes/com-grandlyon-ecolyo-seasonEntity.ts

src/doctypes/com-grandlyon-ecolyo-userseason.ts

src/doctypes/index.ts

src/models/profile.model.ts

src/models/season.model.ts

src/services/initialization.service.ts

src/services/seasonService.ts