Add sceneryStack to CT

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[zepumph]

I believe @jonathanolson and I want to first try to proceed by adding scenerystack repos to active-repos.

[zepumph]

• We want to make sure that linting and type checking work in these repos before adding them to active-repos:

grunt lint --all (perhaps by adding to this list https://github.com/phetsims/perennial/blob/67147519c7434b3c6f369d4d7035c60c8ab24077/js/eslint/lint-main.ts#L35)
grunt type-check --all

• Adding these to active-repos, (likely adding an if statement to https://github.com/phetsims/perennial/blob/f0b884db550642acc66656cbcb9ae9d57687f8c2/js/common/gitCloneDirectory.js#L21-L26
• We may want a data list like active-scenerystack-repos instead of hard coding things into gitCloneDirectory.
• Update listContinuousTests with our scenery stack items (perhaps updating so that it can use npm-run tests).