Move snapshot port into standalone module

[christian-bromann]

Clear and concise description of the problem

Hey 👋

I wonder what do you all think of moving the snapshot port from Jest into an own module for other frameworks to consume. I am maintaining the WebdriverIO project and looking to support snapshot tests for unit and component testing in the browser. From what I can see skimming through the code, next to some utils the only module that is shared is the rpc handler which could be passed into the SnapshotManager and other classes that need it. I am not too familiar with the code base, so I could be totally wrong 🤔

Suggested solution

Move snapshot utility into a standalone module for other test frameworks, e.g. WebdriverIO to consume.

Alternative

An alternative is to just copy the code from this repo into the WebdriverIO project, however this would require double maintenance of the same code. Both project have the same requirements to snapshot testing, so why not maintain a single library for it.

Additional context

I am happy to step in and do the necessary work to ship this.

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[christian-bromann]

This is amazing @sheremet-va , thank you so much! 🙏