Add voting and registration solidity file

[vishesh-soni]

Two files added

voting.sol contains code for taking input of nominee information, checking current registration state, changing registration state, and viewing details of the nominees.

votecount.sol contains code for taking input of candidate vote, checking current voting state, changing voting state, and viewing total vote counts of nominees.

[harnaman-hk]

Good start!
A few comments:

1. Replace index with a more meaningful variable name in Voting.sol
2. The _id for votecount in votecount.sol should be corresponding to a candidate in voting.sol, is this planned for future commits?
3. We can merge Voting.sol and Vote.sol @GarvitV957 @vishesh-soni
4. Is bin not auto-generated at compilation?

If points 2 and 3 are targeted for future commits, we can look to merge this one.

[vishesh-soni]

No, _id is mapping to the nominee for fetching vote-count of nominees.