feat(examples): Voting Realm: A Bitmap and Nonce-based Approach

[linhpn99]

Simple UseCase Description :

1. Initialize the Contract :

• Call the Init function to set up the contract.
• This initializes the proposal and voter indices and creates empty AVL trees for proposals and registered voters.

2. Create a Proposal

• A user creates a proposal by calling CreateProposal with the title, number of participants, and max votes per user.
• The function returns a unique proposal ID.

3. Register as a Voter

• Users must register as voters by calling RegisterVoter.
• Each user receives a unique voter ID upon registration.

4. Cast a Vote

• Registered voters can cast votes on proposals by calling Vote with the proposal ID and their voter ID.
• The contract checks if the voter is registered, if the proposal exists, if the proposal is open for voting, and if the voter has not exceeded their vote limit.
• If all conditions are met, the vote is recorded, and the vote count for the proposal is incremented.

5. Get Vote Count

• Anyone can check the current vote count for a proposal by calling GetVotes with the proposal ID.
• The function returns the total votes the proposal has received.

From issue : #2119

Contributors' checklist...

• Added new tests, or not needed, or not feasible
• Provided an example (e.g. screenshot) to aid review or the PR is self-explanatory
• Updated the official documentation or not needed
• No breaking changes were made, or a BREAKING CHANGE: xxx message was included in the description
• Added references to related issues and PRs
• Provided any useful hints for running manual tests
• Added new benchmarks to generated graphs, if any. More info here.

[linhpn99]

@moul Here's a simple demo (still under development). I am using newly added packages. Please let me know if anything is unclear