feature: Service-worker. Add certified streaming for chunkified assets

[3cL1p5e7]

Problem:

for assets over 2mb size, verification did not pass. This is because the worker only loads and checks the sha256-hashes of the first chunk. Obviously, the hash of the chunk and the hash of the entire file (in sha256 field) do not match.

Solution:

Make service-worker to load and concat all chunks before hash-check.

Important

This PR is related, but not blocked by 2 others
dfinity/icp-js-core#527
dfinity/certified-assets#22

Comments:

• Now service-worker can check certificates for any assets over 2mb size.
• It was necessary to update the Jest because I caught an error Wrong magic number when I did IDL.encode -> IDL.decode. Current Jest setup corresponds to dfinity/agent-js/agent setup.
• fetch: self.fetch.bind(self) is passed to HttpAgent intentionally. See fix: fetch binding icp-js-core#527

Waiting for comments on implementation

[Ali-Piccioni]

droid update

[ghost]

Dear @3cL1p5e7,

This repository does not accept external contributions yet.

We are therefore closing this Pull Request, thank you for your understanding.

— The DFINITY Foundation

[ghost]

Dear @3cL1p5e7,

This repository does not accept external contributions yet.

We are therefore closing this Pull Request, thank you for your understanding.

— The DFINITY Foundation

[ghost]

Dear @3cL1p5e7,

This repository does not accept external contributions yet.

We are therefore closing this Pull Request, thank you for your understanding.

— The DFINITY Foundation

[ghost]

Dear @3cL1p5e7,

This repository does not accept external contributions yet.

We are therefore closing this Pull Request, thank you for your understanding.

— The DFINITY Foundation