Remake WebsiteStorer SC

[thomas-senechal]

Context Following this discussion, we need to remake the SC to match the needs. https://forum.massa.community/t/community-feedback-proposal-for-improving-website-storage-on-deweb/82

Feature

• [x] Upload project
• [x] #118
• [x] Update/upload project metadata and per-file metadata
  • [x] Upload per-file metadata
  • [x] Upload project metadata
  • [x] Remove per-file metadata
  • [x] Remove project metadata
• [x] #116
• [x] Retrieve file chunks
• [x] Retrieve file list
• [x] #120

  Security Concerns

• Verify owner can't cheat, for example by modifying un chunk if immutable or the last update