Add mahasiswa table and model
Remove ujian relationship from mahasiswa
Add dosen migration model, and seed
Add bimbingan and bimbingan type model and migration
Add konsentrasi model, migration and seeder
Add seminar model and migration
Add kerja praktek model and migration
Add tugas akhir model and migration
Add ujian and ujian type model and migration
Add bimbingan type and ujian type seeder
Fix database model, migration and seed mistakes