feat(DEV): Add afterCreateSignal hook to DevHooks

[thetarnav]

A hook called whenever a new signal is created will allow to

1. track the amount of signals in use, compared to the amount of owners, to see the impact of using signals and stores for state management on overall memory use. Discovering memory leaks, and where signals are wastefully created.
2. track the state of signals created outside of owners, eg when doing a simple global state.

[changeset-bot]

🦋 Changeset detected

Latest commit: aabc93c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
solid-js	Patch
test-integration	Patch

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[coveralls]

Pull Request Test Coverage Report for Build 6963478073

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• 6 of 6 (100.0%) changed or added relevant lines in 1 file are covered.
• 14 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.005%) to 93.486%

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Files with Coverage Reduction	New Missed Lines	%
packages/solid/src/reactive/signal.ts	14	93.1%

Totals
Change from base Build 6696199956:	0.005%
Covered Lines:	4148
Relevant Lines:	4368

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💛 - Coveralls