Add vendor to improve building speed.

This also adds ability to be built in network-constrained environment.

vendor/github.com/cloudwego/iasm/expr/term.go

@@ -0,0 +1,23 @@
+//
+// Copyright 2024 CloudWeGo Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+package expr
+
+// Term represents a value that can Evaluate() into an integer.
+type Term interface {
+    Free()
+    Evaluate() (int64, error)
+}