erp5_accounting only create income , receivable and collected_vat in SaleInvoiceTransaction_init
if Invoice Line is not in visible allowed content type. But the method getVisibleAllowedContentTypeList seems
to not work well and always return 'Invoice Line' in the list event after adding 'Invoice Line' in
hidden content types.
To fix this for SlapOS, we create a custom SaleInvoiceTransaction_init in slapos_accounting which always create
income, receivable and collected_vat.

All tests in SlapOS bt5 have been migrated in portal_components, The commit
rewrite the method getTestList to allow to search tests script in portal_components folder.
Tests in product/Vifib/tests are broken and was not ran at all. So we remove them from the list.

BT5 migrated to portal_components:
 - slapos_accounting
 - slapos_cloud
 - slapos_configurator
 - slapos_crm
 - slapos_erp5
 - slapos_hypermedia
 - slapos_payzen
 - slapos_pdm
 - slapos_rest_api
 - slapos_slap_tool
 - slapos_upgrader
 - slapos_web

slapproxy tests: catch correct exception when testing if started, always stop proxy even in case of error in setup.

as part of the migration to 'requests'

slapos format: fix use_unique_local_address_block feature, and put default to false in configure_local.

Correct fix.

alter_user is true again by default.
This reverts commit 266d0869.
This code has nothing to do with partition chown.

slapos.grid: Adapt retention_delay implementation to support retention_delay being specified in SLA.