feat: warn and continue parsing on msg decompression failure

ref #409

Author: akiver

pkg/demoinfocs/parsing.go

@@ -345,8 +345,15 @@ func (p *parser) parseFrameS2() bool {
 		var err error
 
 		buf, err = snappy.Decode(nil, buf)
+
 		if err != nil {
-			panic(err) // FIXME: avoid panic
+			if errors.Is(err, snappy.ErrCorrupt) {
+				p.eventDispatcher.Dispatch(events.ParserWarn{
+					Message: "compressed message is corrupt",
+				})
+			} else {
+				panic(err)
+			}
 		}
 	}