feat: implement new vote

[c0nsol3]

Example usage:

from solar_crypto.transactions.builder.vote import Vote

transaction = Vote()
transaction.set_nonce(1)

# specify vote weights
# transaction.set_votes({"fun": 35.3, "deadlock": 64.7}) 

# specify a list of votes
# transaction.set_votes(["+fun", "+deadlock", "+dpos.info"])

# unvote
transaction.set_votes({})

transaction.sign("passphrase")

return client.transactions.create([transaction.to_dict()])

In a separate PR I'll bump the lib version add create CHANGELOG file to track changes for each release.

[c0nsol3]

Thank you everyone for your feedback. @sleepdefic1t please have a look at my latest changes.

[sleepdefic1t]

As mentioned here and here:

• the final vote % must be 100%, and
• non-decimal integers (e.g., 50/25/25) must also be accepted for vote %

These must be both:

• enforced/permitted in the code's src, and
• checked in tests (pass and fail)

[c0nsol3]

I've made these additional checks in the latest commit.

[sleepdefic1t]

The final vote % must be 100%.

Please add an additional check, and test case, to enforce that values less than 100% are also rejected.