Escape larger set of characters in Lua output

Started with a minimum of replacements, this should be more complete,
tho not all substitutions are strictly required in Lua.

pkg/yqlib/encoder_lua.go

@@ -18,7 +18,44 @@ func (le *luaEncoder) CanHandleAliases() bool {
 }
 
 func NewLuaEncoder() Encoder {
-	escape := strings.NewReplacer("\n", "\\n", "\"", "\\\"", "\\", "\\\\")
+	escape := strings.NewReplacer(
+		"\000", "\\000",
+		"\001", "\\001",
+		"\002", "\\002",
+		"\003", "\\003",
+		"\004", "\\004",
+		"\005", "\\005",
+		"\006", "\\006",
+		"\007", "\\a",
+		"\010", "\\b",
+		"\011", "\\t",
+		"\012", "\\n",
+		"\013", "\\v",
+		"\014", "\\f",
+		"\015", "\\r",
+		"\016", "\\014",
+		"\017", "\\015",
+		"\020", "\\016",
+		"\021", "\\017",
+		"\022", "\\018",
+		"\023", "\\019",
+		"\024", "\\020",
+		"\025", "\\021",
+		"\026", "\\022",
+		"\027", "\\023",
+		"\030", "\\024",
+		"\031", "\\025",
+		"\032", "\\026",
+		"\033", "\\027",
+		"\034", "\\028",
+		"\035", "\\029",
+		"\036", "\\030",
+		"\037", "\\031",
+		"\"", "\\\"",
+		"'", "\\'",
+		"\\", "\\\\",
+		"\177", "\\127",
+	)
 	return &luaEncoder{"return ", ";\n", escape}
 }