Consistent handling of CSV delimiters

[Matias Siracusa]

Related to #281: if one searches this repo for "Import-Csv $csvPath -Delimiter $delimiter" then I can see that there are different and not uniform way to derive the correct value for the delimiter.

For instance:

• epv-api-scripts/Linked Accounts/Link-Accounts.ps1

  Line 632 in 15deaad

   $delimiter = $((Get-Culture).TextInfo.ListSeparator) 

• epv-api-scripts/Account Onboard Utility/Accounts_Onboard_Utility.ps1

  Line 1505 in 15deaad

   $delimiter = $(If ($CsvDelimiter -eq "Comma") { 

I for one, find that it would be nice if one could pass the delimiter value as a parameter, but even if not it should be handled consistently so that I don't have to break into the debugger to find out how I should format the CSV.

[bab29]

There is a todo item to try and standardize the function and processes across all scripts. As these scripts have been donated by many different people that will have differences.