AI simulator: implement expected issuance

What

This is the implementation of expected issuance accordingly to the implementation.

Why

How

npm install 
make css
make build
make server
firefox http://127.0.0.1:8080/

Manually testing the MR

You can compare the returned values with the weeklynet network by using the following RPC.

curl  -s https://rpc.weeklynet-2024-03-06.teztnets.com/chains/main/blocks/2704/context/issuance/expected_issuance | jq

Checklist

• Document the interface of any function added or modified (see the coding guidelines)
• Document any change to the user interface, including configuration parameters (see node configuration)
• Provide automatic testing (see the testing guide).
• For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
• Select suitable reviewers using the Reviewers field below.
• Select as Assignee the next person who should take action on that MR