Master position problem for U+FE10

The ExtraLight master of the glyph U+FE10 (uniFE10, CID+58979, vertical form of U+FF0C) seems to protrude upwards too much that it hits the previous character for some characters. It is noted that the glyph exceeded its bounding box of top 880 when checked in FontLab, which results in the problem.

Heavy master does not have this problem and this caused all intermediate masters to have a slightly shifted up U+FE10 for Simplified Chinese texts. This problem seems to be present since the first release of the font.


Related info: https://github.com/adobe-fonts/source-han-sans/issues/182#issuecomment-323562595, https://github.com/adobe-fonts/source-han-sans/issues/181#issue-231731987 (`vpal` might need to be readjusted after fix)