Upgrade hcl to v2

Signed-off-by: Patrick Van Stee <patrick@vanstee.me>

vendor/github.com/zclconf/go-cty/cty/convert/conversion_primitive.go

@@ -0,0 +1,57 @@
+package convert
+
+import (
+	"strings"
+
+	"github.com/zclconf/go-cty/cty"
+)
+
+var stringTrue = cty.StringVal("true")
+var stringFalse = cty.StringVal("false")
+
+var primitiveConversionsSafe = map[cty.Type]map[cty.Type]conversion{
+	cty.Number: {
+		cty.String: func(val cty.Value, path cty.Path) (cty.Value, error) {
+			f := val.AsBigFloat()
+			return cty.StringVal(f.Text('f', -1)), nil
+		},
+	},
+	cty.Bool: {
+		cty.String: func(val cty.Value, path cty.Path) (cty.Value, error) {
+			if val.True() {
+				return stringTrue, nil
+			} else {
+				return stringFalse, nil
+			}
+		},
+	},
+}
+
+var primitiveConversionsUnsafe = map[cty.Type]map[cty.Type]conversion{
+	cty.String: {
+		cty.Number: func(val cty.Value, path cty.Path) (cty.Value, error) {
+			v, err := cty.ParseNumberVal(val.AsString())
+			if err != nil {
+				return cty.NilVal, path.NewErrorf("a number is required")
+			}
+			return v, nil
+		},
+		cty.Bool: func(val cty.Value, path cty.Path) (cty.Value, error) {
+			switch val.AsString() {
+			case "true", "1":
+				return cty.True, nil
+			case "false", "0":
+				return cty.False, nil
+			default:
+				switch strings.ToLower(val.AsString()) {
+				case "true":
+					return cty.NilVal, path.NewErrorf("a bool is required; to convert from string, use lowercase \"true\"")
+				case "false":
+					return cty.NilVal, path.NewErrorf("a bool is required; to convert from string, use lowercase \"false\"")
+				default:
+					return cty.NilVal, path.NewErrorf("a bool is required")
+				}
+			}
+		},
+	},
+}