PoC: Add built-in CCF contract with encode function

[turbolent]

Work towards #3637

Description

Add a new built-in contract CCF, which allows encoding an exportable value to .

The parameter of encode is a reference, so it can accept both structs and resources, and supports move-semantics of resources (i.e. does not consume the passed resource-kinded value)

For now this is a PoC showing how this could be done.

TODO

Beta Give feedback

1. Determine interest and use-cases
2. Add more tests
3. Decode function?
4. Resolve cyclic import between encoding/ccf and stdlib

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• Targeted PR against master branch
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work
• Code follows the standards mentioned here
• Updated relevant documentation
• Re-reviewed Files changed in the Github PR explorer
• Added appropriate labels

[github-actions]

Cadence Benchstat comparison

This branch with compared with the base branch onflow:master commit 85f46f7
The command for i in {1..N}; do go test ./... -run=XXX -bench=. -benchmem -shuffle=on; done was used.
Bench tests were run a total of 7 times on each branch.

Collapsed results for better readability

[turbolent]

Unfortunately there's currently a cyclic import between encoding/ccf and stdlib at the moment, which we'll need to resolve