Refactored version directory names

3.0 and 2.0 do not work, there are multiple versions and anything with a period in it sucks from my point of view, v2 and v3 feel much better from a DX perspective.

datamodel/high/v3/oauth_flows_test.go

@@ -0,0 +1,55 @@
+// Copyright 2022 Princess B33f Heavy Industries / Dave Shanley
+// SPDX-License-Identifier: MIT
+
+package v3
+
+import (
+	"github.com/pb33f/libopenapi/datamodel/low"
+	v3 "github.com/pb33f/libopenapi/datamodel/low/v3"
+	"github.com/pb33f/libopenapi/index"
+	"github.com/stretchr/testify/assert"
+	"gopkg.in/yaml.v3"
+	"testing"
+)
+
+func TestNewOAuthFlows(t *testing.T) {
+
+	yml := `implicit:
+  authorizationUrl: https://pb33f.io/oauth
+  scopes:
+    write:burgers: modify and add new burgers
+    read:burgers: read all burgers
+authorizationCode:
+  authorizationUrl: https://pb33f.io/oauth
+  tokenUrl: https://api.pb33f.io/oauth/token
+  scopes:
+    write:burgers: modify burgers and stuff
+    read:burgers: read all the burgers
+password:
+  authorizationUrl: https://pb33f.io/oauth
+  scopes:
+    write:burgers: modify and add new burgers
+    read:burgers: read all burgers
+clientCredentials:
+  authorizationUrl: https://pb33f.io/oauth
+  scopes:
+    write:burgers: modify burgers and stuff
+    read:burgers: read all the burgers    `
+
+	var idxNode yaml.Node
+	_ = yaml.Unmarshal([]byte(yml), &idxNode)
+	idx := index.NewSpecIndex(&idxNode)
+
+	var n v3.OAuthFlows
+	_ = low.BuildModel(&idxNode, &n)
+	_ = n.Build(idxNode.Content[0], idx)
+
+	r := NewOAuthFlows(&n)
+
+	assert.Len(t, r.Implicit.Scopes, 2)
+	assert.Len(t, r.AuthorizationCode.Scopes, 2)
+	assert.Len(t, r.Password.Scopes, 2)
+	assert.Len(t, r.ClientCredentials.Scopes, 2)
+	assert.Equal(t, 2, r.GoLow().Implicit.Value.AuthorizationUrl.KeyNode.Line)
+
+}