Add fast test for balance < tx.Value + gas

[benaadams]

Changes

• Will be currently be rejected later in pipeline by BalanceTooLowFilter; however that iterates and considers all txs from the account; can do an earlier reject in BalanceZeroFilter just for the current tx in solation

Types of changes

What types of changes does your code introduce?

• Bugfix (a non-breaking change that fixes an issue)
• New feature (a non-breaking change that adds functionality)
• Breaking change (a change that causes existing functionality not to work as expected)
• Optimization
• Refactoring
• Documentation update
• Build-related changes
• Other: Description

Testing

Requires testing

• Yes
• No

If yes, did you write tests?

• Yes
• No

[marcindsobczak]

Actually it was fine before last commit (Use correct gas calc) 😄