Log Message:
py-ICU: updated to 2.6

Version 2.5 -> 2.6
------------------
- added missing BreakIterator.getRuleStatus() wrapper
- added wrappers for UBiDi API
- added wrappers for UBiDiTransform API
- added support for ICU 68.1
- added wrappers for DateIntervalFormat.get/setContext()
- added wrapper for LocaleMatcher.isMatch()
- added wrapper for LocaleMatcherBuilder.setDirection()
- added wrappers LocaleMatcherBuilder.setMaxDistance(), setNoDefaultLocale()
- added wrappers for MeasureUnit.getComplexity() and UMeasureUnitComplexity
- added wrapper for MeasureUnit.getIdentifier()
- switched MeasureUnit.__str__() to use MeasureUnit::getIdentifier()
- added wrappers for new MeasureUnit static factory methods
- added wrapper for FormattedNumber.getOutputUnit()
- added wrapper for FormattedNumberRange.getDecimalNumbers()
- added wrappers for PluralRules.select(FormattedNumber|Range)