support new ethstorage-sdk

[iteyelmp]

support new ethstorage-sdk, support estimated gas

Based on EthStorage-SDK v2, the directory structure of the cli has been adjusted, so the main functions need to be retested.

Local test:

1. git clone https://github.com/ethstorage/ethfs-cli.git
2. git checkout -b new origin/new
3. yarn install
4. npm link

Test case:

1. On a chain that supports Blob:

1. Create a contract.
2. Set default file
3. Use calldata to upload file.
4. Use blob to upload file.
5. Use calldata to upload files in a folder
6. Use blob to upload files in a folder
7. After uploading part of the calldata or blob, terminate the upload task and restart uploading again to test the speed of comparing the uploaded files.
8. If all functions are normal, the test passes.

2. On a chain that does not support Blobs.

1. Create a contract.
2. Set default file
3. Use calldata to upload file.
4. Use calldata to upload the folder
5. After uploading some files, terminate the upload task and restart uploading again.
6. If all functions are normal, the test passes.

[qzhodl]

support new ethstorage-sdk, support estimated gas

I think you may need to provide more details about the test plan since there are so many changes in this PR. What use cases do you want to cover, and what are the expected results?