Updating the 'International Finance' tab indicators on the Global Picture

The following to be manually produced and submitted to the back-end.

**Data series name: Front end name**
data_series.fdi_percent_gdp: Foreign direct investment, % of GDP
data_series.fdi_pp: Foreign direct investment per person, US$
data_series.remittances_pp: Remittances received per person, US$
data_series.largest_intl_flow: Largest international resource flow
data_series.intl_resources_total_percent_gdp: Total international resource flows, % of GDP
data_series.oda_percent_intl_resources: ODA, % of international resource flows