Hunting allocations 2

[LukaszRozmej]

Changes

• Add statics for [0] and [1].
• Storage slots returned as spans.
• Decode accounts from spans
• More ReadOnlySpan and ReadOnlyMemory

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