allow luaFlowStatistics to update the production graphs

[CmdrKeen]

I'm making a mod that simulates furnace activities on a large scale, however any changes to item_production_statistics (LuaFlowStatistics) in the entity's force only show up in the all category of the production tabs.

I'd like to have two calls added that has changes that show up on the production graph.

add_to_input_count(string, count)

• add's a non-negative amount to the input count for a given prototype

Parameters:

• string: The prototype name.
  count: a non-negative value (integer?)

add_to_output_count(string,count)

• add's a non-negative amount to the output count for a given prototype

Parameters:

• string: The prototype name.
  count: a non-negative value (integer?)

Hopefully it'd be simple to implement.

[Rseding91]

Added for the next version of 0.15.

[CmdrKeen]

Added for the next version of 0.15.

Thank you!