Add data model and structure for swift graph executor, rework create products to bem ore general

FastCoster/FastCoster/CsvEditor.swift

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+//
+//  CsvEditor.swift
+//  FastCoster
+//
+//  Created by Michael Pivato on 3/5/2024.
+//
+
+import SwiftUI
+
+struct CsvEditor: View {
+    // A table to view data in a file: https://developer.apple.com/documentation/SwiftUI/Table
+    // It's fine to load it all into memory to begin with, we'll probably want to change that later though.
+    var body: some View {
+        Text(/*@START_MENU_TOKEN@*/"Hello, World!"/*@END_MENU_TOKEN@*/)
+    }
+}
+
+#Preview {
+    CsvEditor()
+}