feat: Get-CsvColumnList and Get-CsvKeyList

public/CsvColumList.ps1

@@ -0,0 +1,24 @@
+<#
+.SYNOPSIS
+Returns a list of column names from a CSV file.
+
+.DESCRIPTION
+This function reads a CSV file and returns a list of its column names.
+
+.PARAMETER FilePath
+The path to the CSV file.
+
+.EXAMPLE
+Get-CsvColumnList -FilePath "C:\path\to\file.csv"
+
+.NOTES
+#>
+function Get-CsvColumnList {
+    [CmdletBinding()]
+    param (
+        [Parameter(Mandatory)][string]$Path
+    )
+
+    $csv = Import-Csv -Path $Path
+    $csv | Get-Member -MemberType NoteProperty | Select-Object -ExpandProperty Name
+} Export-ModuleMember -Function Get-CsvColumnList

public/CsvKeyList.ps1

@@ -0,0 +1,21 @@
+<#
+.SYNOPSIS
+Returns a list of key values derived from CSV data.
+
+.DESCRIPTION
+This function reads a CSV file and returns a list of unique values from a specified key column.
+
+.EXAMPLE
+Get-CsvKeyList -Path "C:\path\to\file.csv" -KeyColumn "Id"
+#>
+function Get-CsvKeyList {
+    [CmdletBinding()]
+    param (
+        [Parameter(Mandatory=$true)][string]$Path,
+        [Parameter(Mandatory=$true)][string]$KeyColumn
+    )
+
+    $csv = Import-Csv -Path $Path
+    $csv | Select-Object -ExpandProperty $KeyColumn | Sort-Object -Unique
+
+} Export-ModuleMember -Function Get-CsvKeyList