[BitSail][Improve] LocalFileSystem source supports concurrency

[Jake-00]

Is your feature request related to a problem? Please describe

Current LocalFileSystemSource can only support single concurrency. To support multiple concurrency in the connector would improve efficiency.

Describe the solution you'd like

To implement v1 Source interface.

Describe alternatives you've considered

N/A

Additional context

N/A

[lichang-bd]

Do you have interest in supporting this feature? @Jake-00

[Jake-00]

Sure

[lichang-bd]

great , Looking forward for your contribution @Jake-00