Migration to version 16.0

[sbidoul]

Todo

https://github.com/OCA/maintainer-tools/wiki/Migration-to-version-16.0

Modules to migrate

• [ ] ~~ebill_paynet~~ obsolete
• [ ] ~~ebill_paynet_customer_free_ref~~ obsolete
• [x] l10n_ch_account_tags - By @simoneversienti - #712
• [ ] ~~l10n_ch_base_bank~~ obsolete
• [ ] l10n_ch_bank - was necessary to have BIC info from banks, BIC is not mandatory anymore
• [ ] l10n_ch_invoice_reports (ISR report to be removed)
• [ ] ~~l10n_ch_isrb~~ obsolete
• [ ] l10n_ch_qr_bill_scan - By @sonhd91 - #698
• [ ] ~~l10n_ch_states~~ Switzerland states included in base module
• [ ] ~~server_env_ebill_paynet~~ obsolete

Missing module? Check https://github.com/OCA/maintainer-tools/wiki/%5BFAQ%5D-Missing-modules-in-migration-issue-list