Add Marathon Bet live stats VBA scraper

- MarathonStats.bas: VBA module that fetches live sports data from
  marathonbet.by using curl (handles gzip compression), parses HTML
  for team names, scores, odds, and outputs to formatted Excel sheet
- RunMarathon.ps1: PowerShell launcher to automate Excel macro execution
- MarathonStats.xlsm: Pre-built workbook with sample output

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,15 @@
+# Temp/helper scripts
+FindOffice.ps1
+QuickTest.ps1
+TestConnections.ps1
+FetchPage.ps1
+DiagnoseHTTP.ps1
+CheckOutput.ps1
+VerifyData.ps1
+RunAndVerify.ps1
+
+# Page dumps
+page_dump.html
+
+# Excel temp files
+~$*.xls*