feat: add function to parse HTTP header parameters (valyala#1685)

* feat: add function to parse HTTP header parameters

The implementation is based on RFC-9110 5.6.6.

* test: add fuzz for VisitHeaderParams

header_test.go

@@ -2335,7 +2335,7 @@ type bufioPeekReader struct {
 }
 
 func (r *bufioPeekReader) Read(b []byte) (int, error) {
-	if r.s == "" {
+	if len(r.s) == 0 {
 		return 0, io.EOF
 	}