Support Terraform Providers with plugin SDK <v2

Resolves #129

Signed-off-by: Hasan Turken <turkenh@gmail.com>

go.mod

@@ -7,15 +7,17 @@ require (
 	github.com/fatih/camelcase v1.0.0
 	github.com/golang/mock v1.6.0
 	github.com/google/go-cmp v0.5.6
+	github.com/hashicorp/terraform-plugin-sdk v1.17.2
 	github.com/hashicorp/terraform-plugin-sdk/v2 v2.7.0
 	github.com/iancoleman/strcase v0.2.0
 	github.com/json-iterator/go v1.1.11
 	github.com/muvaf/typewriter v0.0.0-20210910160850-80e49fe1eb32
 	github.com/pkg/errors v0.9.1
 	github.com/spf13/afero v1.6.0
-	go.uber.org/multierr v1.7.0 // indirect
 	golang.org/x/tools v0.1.5
 	k8s.io/api v0.21.3
 	k8s.io/apimachinery v0.21.3
 	sigs.k8s.io/controller-runtime v0.9.6
 )
+
+replace github.com/hashicorp/terraform-plugin-sdk => github.com/turkenh/terraform-plugin-sdk v1.17.2-patch1