nvda

1045d2de - Use uniscribe to calculate character offsets where allowed (#10550)

Use uniscribe to calculate character offsets where allowed (#10550) * OffsetsTextInfo._getCharacterOffsets: use uniscribe where possible to calculate the bounds for a character. This allows us to treat something like e-acute as one character. * Add copyright header to textUtils.cpp * Fix linting issues. * Restore some accidentally removed code from OffsetsTextInfo._getCharacterOffsets, allowing unit tests to pass again. * nvdaHelperLocal's textUtils.cpp: abstract out code to avoid duplicate code in both calculateWordOffsets and calculateCharacterOffsets. * Address review actions.