feat: Compress unlikely-to-be-used disk data

[hyunsooda]

Proposed changes

This PR is in a very early stage.

The detailed technical descriptions are pending and will be added to this PR description soon.

TODO

1. Implement compression module per header, body, and receipts types

• Receipts: Implemented as a template in the first commit
• Headers: To be implemented
• Body: To be impemented

2. Rewind consideration

3. Modularization

• Compression module
  • Internal header compression
  • Internal body compression
  • Internal body compression

4. Performance evaluation

• Trade-off between chunk size selection
  • compression/decompression overhead v.s. disk size reduction
• Trade-off between leveled chunk compression
  • compression/decompression overhead v.s. disk size reduction

5. Unit tests

6. Getter APIs

Types of changes

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• Bugfix
• New feature or enhancement
• Others

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