Add Nepali Romanized keyboard

java/res/xml-sw600dp/rows_nepali_romanized.xml

java/res/xml-sw768dp/rows_nepali_romanized.xml

java/res/xml-v16/key_nepali_romanized2.xml

java/res/xml-v16/key_nepali_romanized2_shift.xml

java/res/xml-v16/key_nepali_romanized3.xml

java/res/xml-v16/key_nepali_romanized3_shift_center.xml

java/res/xml-v16/key_nepali_romanized3_shift_left.xml

java/res/xml-v16/key_nepali_romanized3_shift_right.xml

java/res/xml-v16/keys_nepali_romanized1_left2.xml

java/res/xml-v16/keys_nepali_romanized1_right3.xml

java/res/xml-v16/keys_nepali_romanized1_shift_left2.xml

java/res/xml-v16/keys_nepali_romanized1_shift_right2.xml

java/res/xml/kbd_nepali_romanized.xml

java/res/xml/key_nepali_romanized2.xml

java/res/xml/key_nepali_romanized2_shift.xml

java/res/xml/key_nepali_romanized3.xml

java/res/xml/key_nepali_romanized3_shift_center.xml

java/res/xml/key_nepali_romanized3_shift_left.xml

java/res/xml/key_nepali_romanized3_shift_right.xml

java/res/xml/keyboard_layout_set_nepali_romanized.xml