copy INSURANCE_HEALTH_BASE
copy INSURANCE_SOCIAL_BASE
copy SAVINGS_PENSION_BASE
copy TAX_INCOME_ADVANCE
ren TAX_INCOME_ADVANCE
ren TAX_INCOME_WITHHOLD
ren TAX_INCOME
rename
add_participation_* -> add_statement_*
add_tax_declaration -> add_tax_statement
in Tax*Part rename
TaxIncome -> TaxStatement
change ClassMembers to CONSTANTS