update_drillstack_selectInput: update_drillstack_selectInput
In RX-PBB/PBBCosting:

This function updates the selectInputs in the modal of update stack level stacking

1 2	update_drillstack_selectInput(session, inputId, choices, selected, CostModelInfo = values.setup$CostModelInfo)

`session`	the session variable used in shiny::updateSelectInput which is called here
`inputId`	id of selectInput element
`choices`	choices for drop down. function will make the Div's speficic to the clients naming conventions
`selected`	What value to select
`CostModelInfo`	Table to use for the naming conventions in the account set-up