add buddy check template

Author: nuest

.github/ISSUE_TEMPLATE/buddy-exchange-request.md

@@ -0,0 +1,43 @@
+---
+name: Buddy Exchange Request
+about: Request a new buddy exchange for a CODECHECK
+title: '[Author Name] | [CHECK-IDENTIFIER] '
+labels: ['buddy exchange']
+---
+
+**Brief Description:**
+<!-- Provide a brief description of your project or the area you need help with -->
+
+**Code Repository:**
+<!-- Provide a link to your code repository (GitHub, GitLab, etc.) -->
+
+**Data Repository (if applicable):**
+<!-- Provide a link to your data repository or dataset -->
+
+**Published Paper or Preprint:**
+<!-- Provide a link to your published paper or preprint, ideally with a DOI -->
+
+**What You Can Offer:**
+<!-- Describe what you can offer in return (your expertise, code review, etc.) -->
+
+**Timeline:**
+<!-- When do you need this collaboration? Any deadlines? -->
+
+**Additional Information:**
+<!-- Any other relevant details -->
+
+<!--
+
+**Next Steps:**
+
+1. After submitting this issue, check the [buddy-exchange label](https://github.com/daniel/buddy-exchange/labels/buddy-exchange) to see all active requests to find potential matches
+2. To find your issue ID, look at current issues labeled "id assigned"
+
+**Guidelines:**
+
+- Be specific about what you're looking for
+- Include links to public repositories when possible
+- Be clear about timelines and expectations
+- Tag relevant technologies or domains in your description
+
+-->