[Project submission] Filecoin Java SDK

[jc0803kevin]

Supporting features:

• all Lotus RPC API
• offline wallet creation(BLS, secp256k1 & multisig),
• Transfer Signature, offline multi-signature, etc.

[longfeiWan9]

@jc0803kevin Thank you very much for submitting the project showcase. I checked the Github link you have provided, but it is empty. Do you just start the project ? Or is this something you have worked on and you will push your code in the future ?

[jc0803kevin]

@jc0803kevin Thank you very much for submitting the project showcase. I checked the Github link you have provided, but it is empty. Do you just start the project ? Or is this something you have worked on and you will push your code in the future ?

Coding has started, but it has not been completed, and has not been pushed yet

[longfeiWan9]

@jc0803kevin Thank you very much for submitting the ecosystem project showcase, I have approved the PR. Please give other maintainers one day to look at it. If no other commands, I will merge tomorrow.