Sm/fixes

[mshanemc]

What does this PR do?

interface for TemplateOptions has apiVersion and outputDir as optional. But SfdxGenerator is typed to make them required, so catch-22.

This moves those to instance props that are defaulted in the ctor.

unrelated:
shelljs is only used in some npm script, so it moved to devDeps
I bumped tar to help with an error related to node18 isaacs/node-tar#321

What issues does this PR fix or reference?

needed for @W-11976561@ to remove a bunch of type-ignoring code

[randi274]

QA Complete ✔️ with VS Code - just a few changes!

With Custom template:
✅ Create apex class

With default template:
✅ Create apex class
✅ Create analytics template
✅ Create apex trigger
✅ Create lightning interface
✅ Create LWC
✅ Create LWC Test
✅ Create Aura cmp
✅ Create Aura app
✅ Create Aura event
✅ Create VF page

Failed:
❌ Create VF cmp -> no API version in the meta-xml
❌ Create Project - no sourceApiVersion in the sfdx-project.json
❌ Create Project w/ Manifest - no version set in the package.xml
^^ all should be solved with adding this to the apiversion.

[randi274]

✅ Create VF cmp -> now setting API version in the meta-xml
✅ Create Project - now setting sourceApiVersion
✅ Create Project w/ Manifest - now setting version in the package.xml