test: test matrix workflow for optional SDKs

[jnewc]

Description

This PR modifies the existing github workflows to allow testing and coverage reporting for optional SDK as they function when integrated with the core SDK

Includes:

• Matrix job for three optional SDKs (3DS, Klarna, NolPay)
• Separate job for debug app tests (coverage not reported)
• Collation of coverage reports and reporting to sonar
• Separate Package.*.swift files for testing specific optional SDKs (used by GH workflows)
• Package.Development.swift for working on and testing all optional SDKs (for local use)

Other Notes

• iPay88 is currently not included due to issues with the way the vendor framework is packaged.

Contributor Checklist

• All status checks have passed prior to code review
• I have added unit tests to a reasonable level of coverage where suitable
• I have added UI tests to new user flows, if applicable
• I have manually tested newly added UX
• I have open a documentation PR, if applicable

Reviewer Checklist

• I have verified that a suitable set of automated tests has been added
• I have verified that the title prefix aligns to the code changes + whether a release is expected after merging the PR
• I have verified the documentation PR aligns with this PR, if applicable

Before Merging

• If introducing a breaking change, I have communicated it internally
• Any related documentation PRs are ready to merge

Other Stuff

• You can find out more about our automation checks here
• Find out more about conventional commits here

[github-actions]

	Warnings
⚠️	> Pull Request size seems relatively large. If this Pull Request contains multiple changes, please split each into separate PR will helps faster, easier review.
⚠️	Please assign someone aside from CODEOWNERS (@checkout-pci-reviewers) to review this PR.

Generated by 🚫 Danger Swift against 227e0e2

[github-actions]

Appetize link: https://appetize.io/app/57bwsn6izyyhzgkwdp2svolxh4

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud