[feature] Persistent jadx attributes

[skylot]

Now jadx attributes attached to nodes not saved in code cache. And if some classes instead decompilation were loaded from cache, they will not have expected attributes. The current workaround is to force class decompilation, but this can be long and greatly reduce code cache efficiency.
Saving and loading attributes will simplify code and reduce the amount of issues caused by incorrect work with code cache.

Implementation requirements:

• new interface to mark attribute as persistent
• allow using custom save/load code (built-in implementation can use json as data format)
• allow registering persistent attributes using plugins API and from base jadx API (method in JadxDecompiler)
• all nodes should be supported, including: RootNode, ClassNode, MethodNode, FieldNode and maybe InsnNode

Related to PR #2362 and slightly #2188