Verico School Code Stamp v102

Menambahkan school_code pada hasil upload Wellington dan SKKK.

Yang dilakukan

Tambah kolom school_code jika belum ada.
Tambah/standarisasi school_key, school_prefix, dan school_name jika belum ada.
Stamp data Wellington berdasarkan STWIS / Wellington.
Stamp data SKKK berdasarkan STSKKK / SKKK.
Tidak menghapus data.

School	school_code	school_key	school_prefix
Wellington Intelligence School	WIS	wellington	STWIS
SKKK Medan	SKKKMDN	skkk_mdn	STSKKK