Update issue templates

.github/ISSUE_TEMPLATE/request-add-model.md

@@ -0,0 +1,26 @@
+---
+name: Request add model
+about: Template for adding a model to the default list in Neutone
+title: "[MODEL] <NAME>"
+labels: enhancement
+assignees: bogdanteleaga, christhetree
+
+---
+
+## A brief description of what your model does
+
+<here>
+
+## Checklist
+- [ ] I have checked the model works properly loaded locally in the Neutone plugin on my machine. <Insert description of OS version, DAW version, M1/Intel>
+- [ ] I have uploaded the .nm model file at a publicly available location: <Insert link here>.
+
+## Extra information
+<Any other extra information you'd like to tell us>
+
+## Metadata
+
+The model export function should dump a json file. Please paste the contents here for review and discussions.
+
+```
+```