use fvm-ipld-bitfield

[LesnyRumcajs]

Summary of changes
Changes introduced in this pull request:

• Updated all code to use fvm_ipld_bitfield directly.
• Removed utils/bitfield source code.

Reference issue to close (if applicable)

Closes #1555

Other information and links

[codecov]

Codecov Report

Merging #1597 (1acbf5d) into main (df52270) will decrease coverage by 3.25%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main    #1597      +/-   ##
==========================================
- Coverage   34.50%   31.24%   -3.26%     
==========================================
  Files         207      200       -7     
  Lines       23378    21966    -1412     
==========================================
- Hits         8067     6864    -1203     
+ Misses      15311    15102     -209     

Impacted Files	Coverage Δ
blockchain/state_manager/src/utils.rs	0.00% <ø> (ø)
node/rpc-api/src/data_types.rs	0.00% <ø> (ø)
node/rpc-api/src/lib.rs	0.87% <ø> (ø)
node/rpc/src/state_api.rs	0.00% <0.00%> (ø)
vm/actor_interface/src/builtin/miner/mod.rs	0.00% <0.00%> (ø)
blockchain/message_pool/src/msgpool/msg_pool.rs	65.55% <0.00%> (-0.20%)	⬇️
blockchain/message_pool/src/msgpool/mod.rs	87.62% <0.00%> (-0.14%)	⬇️

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