feat: add DMED comparador library with TXT and XLS processing

- Implemented TXT processor for DMED files, extracting RPPSS records.
- Added XLS processor for Prosoft reports, supporting both XLS and XLSX formats.
- Created a comparison tool to identify discrepancies between TXT and XLS data.
- Developed a GUI using eframe for user-friendly interaction.
- Included detailed README documentation for setup and usage instructions.
- Added error handling for file processing and improved data extraction methods.
- Implemented tests for data processing functions and utilities.
- Introduced a build script for Windows resource management.
- Added example scripts for basic and complete comparisons.
- Included a report generation feature for discrepancies found during comparisons.

examples/comparador.rs

@@ -7,7 +7,7 @@ fn main() -> std::io::Result<()> {
     // Processa dois arquivos diferentes
     println!("=== COMPARADOR DE ARQUIVOS DMED ===\n");
     
-    let arquivo1 = "LfsIssDmed068325.txt";
+    let arquivo1 = "LfsIssDmed008425.txt";
     let pessoas1 = processar_arquivo(arquivo1)?;
     
     println!("Arquivo 1: {} registros", pessoas1.len());