Implement compiler using class file api

[bitterfox]

https://openjdk.org/jeps/457

Java 22 introduced ClassFile API as Preview, let's support real compiler using ClassFile API

• Create class for JsonCompilerBridge
  • This creates byte codes for each json elements
• Compiler creates class file with byte codes
  • ClassFile compile(JsonAST)
  • class A {Json process(Object x, Object y, Object z);}
  • load class file and create Method Handle
• JsonStringTemplateProcessor caches MethodHandle class file and call A.process(value[0], value[1], value[2]) through MethodHandle

JsonCompilerBridge#createJsonString(String strs)
// add str to constant pool