generates xero-python-1.15.0 from OAS 2.22.0 - #90

Generates Xero-Python 1.15.0 from Xero-OpenAPI 2.22.4

Accounting API

Organisation model Class enum updated to include ULTIMATE
New method getJournalByNumber added
BADDEBTRELIEF , IGDSINPUT3, SROVR, TOURISTREFUND, TXRCN33INPUT, TXRCREINPUT, TXRCESSINPUT have been added as both a TaxType and ReportTaxType

Finance API

StatementResponse model updated to include startBalance and endBalance properties

Types of Changes

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)