expand .gitignore.

.gitignore

@@ -47,6 +47,32 @@ Temporary Items
 # .nfs files are created when an open file is removed but is still being accessed
 .nfs*
 
+# ---> Windows
+# thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
 # ---> Go
 # Binaries for programs and plugins
 *.exe
@@ -73,3 +99,10 @@ docs
 # Don't include compiled binary
 main
 opendtu-logger
+
+# OpenDTU reference repository for testing
+opendtu/
+
+# Test coverage files
+coverage.out
+coverage.html