generates xero-python-1.12.0 from OAS 2.17.4

[RettBehrens]

Generates Xero-Python 1.12.0 from Xero-OpenAPI 2.17.4

App Store API

Plan.status enum updated to include CANCELED, available options are:
ACTIVE, CANCELED, PENDINGACTIVATION

Subscription.status type corrected from string to Subscription.StatusEnum, available options are:
ACTIVE, CANCELED, PASTDUE

SubscriptionItem updated to include status enum, available options are:
ACTIVE, CANCELED, PENDINGACTIVATION

Files API

Quote added to ObjectGroup enum
SalesQuote added to ObjectType enum

AU Payroll API

AllowanceCategory enum added to EarningsRate, available options are:
NONDEDUCTIBLE, UNIFORM, PRIVATEVEHICLE, HOMEOFFICE, TRANSPORT, GENERAL, OTHER

AllowanceType enum updated to include TOOLS, TASKS, QUALIFICATIONS, available options are:
CAR, TRANSPORT, LAUNDRY, MEALS, TRAVEL, JOBKEEPER, TOOLS, TASKS, QUALIFICATIONS, OTHER

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)