Log Message:
Update pango to 1.37.0

Overview of changes between 1.36.8 and 1.37.0
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- Pango modules, engines, and config have been removed (#733882)
- Added pango_fc_font_map_config_changed() (#748767)
- Added pango_fc_font_map_[sg]et_config() (#547671)
- Added pango_matrix_get_font_scale_factors
- Lot of API has been deprecated
- Fix CoreText font fallback
- General build fixes
- Win32 build fixes