feat(plugin-blocklet): support custom chunkSizeLimit [release-minor]

[LancelotLewis]

Relates Issue

relates https://team.arcblock.io/comment/discussions/08f8e22f-51ba-4306-a369-69b3b1653d7e/#887ea358-c40b-409a-a1ba-c30afe575769

Main changes

1. support custom chunkSizeLimit (default is 2048KB)

Screenshots

Check list

• Project create by create-blocklet can work with npm run dev
• Project create by create-blocklet can work with npm run deploy
• Project create by create-blocklet can work with npm run upload
• If a new version need to be publish, make sure you have run npm run bump-version command