- move all files in accounting/localizations --> accounting/fiscal-localizations/localizations
- fixes paths after the moves defined above
- add new doc about fiscal localization packages
- add references to the new doc mentionned above in the following docs: initial setup, tax returns and chart of accounts
- New "Reporting" section in the Accounting documentation
- New "Overview" sub-section in "Reporting"
- New "Declarations" sub-section in "Reporting"
- Move: others/reporting/customize --> reporting/overview/customize
- Move: others/reporting/main_reports --> reporting/overview/main_reports
- Move: fiscality/taxes/tax_returns --> reporting/declarations/tax_returns