Add GitHub issue and discussion templates

[Splatcrafter]

This pull request adds templates for GitHub issues and discussions. The addition aims to standardize communication across the project, ensuring consistency and ease of use for contributors. No functional code changes were made.

[github-actions]

⚠️ Deprecation Warning: The deny-licenses option is deprecated for possible removal in the next major release. For more information, see issue 997.

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

OpenSSF Scorecard

Package	Version	Score	Details
actions/actions/github-script	7.*.*	🟢 6.4	Details Check Score Reason Maintained ⚠️ 0 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 Binary-Artifacts 🟢 10 no binaries found in the repo Code-Review 🟢 10 all changesets reviewed Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Packaging ⚠️ -1 packaging workflow not detected Token-Permissions 🟢 9 detected GitHub workflow tokens with excessive permissions Fuzzing ⚠️ 0 project is not fuzzed Pinned-Dependencies ⚠️ 1 dependency not pinned by hash detected -- score normalized to 1 License 🟢 10 license file detected Signed-Releases ⚠️ -1 no releases found Security-Policy 🟢 9 security policy file detected CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Branch-Protection 🟢 6 branch protection is not maximal on development and all release branches Vulnerabilities 🟢 3 7 existing vulnerabilities detected SAST 🟢 10 SAST tool is run on all commits

Scanned Files

• .github/workflows/dependabot-retarget-to-develop.yml