Remove compiled binaries from tracking

Untrack 12 Mach-O binaries that were committed to the repo and add
them to .gitignore. These can be rebuilt from source with go build.

Co-authored-by: Cursor <cursoragent@cursor.com>

.gitignore

@@ -1,6 +1,18 @@
 # Binaries
 matterbridge
 test-kosmi
+capture-auth
+monitor-ws
+test-image-upload
+test-long-title
+test-proper-roomcodes
+test-roomcode-image
+test-session
+test-upload
+test-websocket
+test-websocket-direct
+cmd/kosmi-client/kosmi-clien
+cmd/kosmi-client/kosmi-client
 *.exe
 *.dll
 *.so