Application variable to control currency conversion in SCV Macros

SCV import macros to perform currency conversion. If no currency rates are available, this leads to an incorrect update of the cost values.

A new application variable Convert Currency (base_convert_currency) is added to control the execution of the current conversion step in the standard SCV process.

The macro SCV - Inbound All Full is updated to consider the application variable, conditionally executing the step SCV_Transform_Currency_Conversion_All only where the application variable = True.

Set the application variable Override Value to False and skip this process step where currency rates are not available. The default value of the application variable is TRUE to maintain existing behavior.

This enhancement is available after updating the base template (base.zip) for this version. A new role or privilege access to use this feature is not required.