Add interactive menu for SQL Server version selection

[Copilot]

This PR implements the requested feature "birleştirme yapalım başta sorsun hangisini yükleyeceğini ve pull yapsın" (let's do a merge, first ask which one to load and pull) by adding an interactive menu system to the SQL Server auto-installer.

Changes Made

1. Enhanced CALISTIR.bat with Interactive Menu

Previously, CALISTIR.bat only executed SQL Server 2022 Express by default, with other versions commented out. Now it presents a user-friendly Turkish interface that:

• Asks users which SQL Server version they want to install first
• Provides 5 clear options with descriptions
• Handles input validation with error messages for invalid choices
• Maintains existing admin privilege checks

2. Menu Options Available

1. SQL Server 2022 Express (Recommended)
2. SQL Server 2019
3. SQL Server 2014 Express
4. SQL Server 2022 Full Package (No SSMS)
5. Exit

3. Updated Documentation

Updated README.md to reflect the new installation process, replacing manual PowerShell script selection with the streamlined interactive menu approach.

User Experience Improvement

Before: Users had to manually uncomment/comment lines in the batch file or run individual PowerShell scripts directly.

After: Users simply run CALISTIR.bat as administrator and select their preferred SQL Server version from an intuitive menu.

Example menu display:

==========================================
   SQL SERVER OTOMATIK YUKLEYICI
==========================================

Hangi SQL Server surumunu yuklemek istiyorsunuz?

1. SQL Server 2022 Express (Onerilen)
2. SQL Server 2019 
3. SQL Server 2014 Express
4. SQL Server 2022 Full Paket (SSMS Yok)
5. Cikis

Seciminizi yapin (1-5): _

This implementation provides a single entry point that asks which version to install first, then automatically downloads and installs the selected version, exactly as requested in the issue.

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[buzaslan129]

[Win-PS2EXE.exe] ile exeye çevireceğim ona uyarlar mısın

[buzaslan129]

olmamış reis