[IMP] hr: simplify and correct the default data

Some changes were made to the default/demo/test data to be more
consistent:
  - Duplicates of "Paid Time Off" time off types are consolidated into
    one type (inluding year specific versions, ig "Paid Time Off 2019"
  - Annual Time Off is renamed back to Paid Time Off (both for the
    work entry type as the time off type) to be consistent everywhere.
  - All mentions of years in work entry types and time off types have
    been removed, as this is no longer relevant with the new allocation
    rules.
  - Time off types in the default data have been explicitely made
    company agnostic, in order for them to be available to all companies
    and not just the one company that was select when installing
    hr_holidays. This was already the case for the be_payroll data, but
    not for the standard hr_holidays ones.
  - Various small cosmetic / functional fixes and simplifications
    (eg deduplication of data)
  - expense_other_input has been made country agnostic, in order for it
    to be available in all countries.

task-2978513

closes odoo/odoo#112173

Related: odoo/enterprise#36796
Signed-off-by: Kevin Baptiste <kba@odoo.com>