Add Transmission Control Protocol file handling and update PCL serialization

- Introduced FileRead and Record classes for handling file reading in the Transmission Control Protocol.
- Enhanced Description, Detail, and other related classes with JSON serialization attributes for improved data handling.
- Implemented methods for reading and processing files, including network stream management.
- Updated unit tests to cover new functionality and ensure robust testing.
- Added new PDSF file handling classes and integrated them into the project structure.
- Refactored existing code to utilize source generation for JSON serialization, improving performance and maintainability.

Adaptation/FileHandlers/pdsf/Constant.cs

@@ -0,0 +1,13 @@
+namespace Adaptation.FileHandlers.pdsf;
+
+internal class Constant
+{
+
+    public int Take { get; } = 11;
+    public string Site { get; } = "Site: ";
+    public string Multiple { get; } = "MULTIPLE";
+    public string SummaryLine { get; } = "SUMMARY A A";
+    public string LastUnits { get; } = "Flat Z: Grade : % Flat Z: Grade : % Flat Z: Grade : %";
+    public string LastUnitsB { get; } = "Flat Z: Grade : % Flat Z: Grade : % Flat Z: Grade : %";
+
+}