[MIG] account_budget: Migration to new API

The following test have been removed because they were calling methods that doesn't
exist anymore or looking for xmlids that doesn't exist anymore too. Since the new accounting
the test imports were commented, because the features were removed I guess.
- account_budget_report.yml
- account_budget_spread.yml

The 'test/demo' account_budget_demo.yml was something like a common.py file so the test
account_budget_report.yml was rewritten in python with a common file and the test
test_theoreticalamount.py has been adapted accordingly (no more strange use to _update)

For the rest of the migration, nothing particuliar to notice

0 files changed, 0 insertions, 0 deletions