Snippets generation feature

[YuryShkoda]

Intent

• Implement sasjs command to generate VS Code snippets from SAS Macros.

Implementation

• Added sasjs snippets command.
• Covered sasjs snippets command with unit tests.

Checks

• Code is formatted correctly (npm run lint:fix).
• Any new functionality has been unit tested.
• All unit tests are passing (npm test).
• Unit tests coverage has been increased and a new threshold is set.
• All CI checks are green.
• Development comments have been added or updated.
• Development documentation coverage has been increased and a new threshold is set.
• Reviewer is assigned.

Reviewer checks

• Any new code is documented.

[github-actions]

Coverage report

Total coverage

Status	Category	Percentage	Covered / Total
🟡	Statements	73.49%	3290/4477
🟡	Branches	60.41%	1300/2152
🟡	Functions	73.57%	668/908
🟢	Lines	82.48%	8472/10272

Status of coverage: 🟢 - ok, 🟡 - slightly more than threshold, 🔴 - under the threshold

Report generated by 🧪jest coverage report action from b405852

[github-actions]

🎉 This PR is included in version 4.7.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀