[FEAT] Add bitstream module in lib_ccxr

[mrswastik-robot]

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This PR migrates the bitstream functionality from C to Rust while maintaining backward compatibility by creating a new Rust implementation in lib_ccxr/src/common/bitstream.rs and connecting it to the existing C code through FFI bindings.

[prateekmedia]

Could we construct / deconstruct the struct when passing to rust instead of storing a different pointer?

There are other files, where you can see the to_ctype()

[mrswastik-robot]

yaa surely, this should be a better approach rather than having to maintain two structures. I will try to fix it in my next commit

[mrswastik-robot]

@prateekmedia , I have made changes in the bitstream.rs file , can you please review it now

[prateekmedia]

will check this.