Add an issue template for PRP requests.

PiperOrigin-RevId: 775260847
Change-Id: I91670393b618d3fea5d1233c7d4e57774c62fe9e

Author: tooryx

.github/ISSUE_TEMPLATE/patch-reward-program.md

@@ -0,0 +1,20 @@
+---
+name: Patch reward program
+about: Submit a suggestion for the patch reward program
+title: 'PRP: {Software name} {Vuln identifier} {Vuln type}'
+labels: PRP:Request
+assignees: ''
+
+---
+
+- **Identifier of the vulnerability**: {e.g. `None`, `CVE-1234-12345`,
+`GHSA-xxx`, ...}
+- **Affected software**: {Name of the software}
+- **Type of vulnerability**: {Fingerprint/RCE/SSRF/CSRF/XXE/...}
+- **Requires authentication**: {Yes/No}
+- **Language you would use for writing the plugin**: {Templated plugins, Java,
+Python} {If not templated plugins, please provide a justification on why you
+think it requires Java or Python}
+- **Resources**:
+  * {Any links}
+  * {That can be useful to understand the vulnerability}