Create valid transaction function

[lancekrogers]

Create a function that validates the transaction by confirming the below rules:

1. The sender's public key is used to decrypt the signed_hash and the hash matches the transaction hash
2. Each transaction in unspent_transactions is payable to the address hash derived from the sender's public key
3. Each transaction in unspent_transactions has not been spent
4. The total amount in unspent_transactions >= the total amount in outputs

[itsromiljain]

Thoughts -
In that case a transaction should have Input and Output. Multiple outputs can be created from a single Input or clubbing multiple Inputs.
These outputs should be updated in UTXO (unspent transactions)
Every transaction inputs must be checked with the outputs in UTXO and UTXO should be updated once transaction input/s is used to create another transactions output/s
Inputs used in the transaction must be greater than or equal to Outputs in that Transaction