[github] Add issue templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: "\U0001F41B Bug report"
+about: Create a bug report to help improve the Aptos Typescript SDK
+title: "[Bug] <Bug Title>"
+labels: bug
+assignees: ''
+
+---
+
+# 🐛 Bug Description
+
+<!-- 
+  A clear description of what the bug is.  
+  To report a security issue, please email [email protected].
+-->
+
+## How to reproduce
+
+**Code snippet to reproduce**
+```typescript
+// Your code goes here 
+// Please make sure to list any dependencies
+```
+
+**Stack trace / error message**
+```
+// Paste the output here
+```
+
+## Expected Behavior
+
+<!--
+  A clear description of what the expected behavior is
+-->
+
+## System information
+
+**System details:**
+- Typescript SDK Version
+- Platform (e.g. Node, browser, etc.)
+
+## Additional context
+
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: true
+contact_links:
+  - name: Questions and Help (on Aptos Developer Discussions)
+    url: (https://github.com/aptos-labs/aptos-developer-discussions/discussions
+    about: Support and other Questions are handled by the team and the community on Aptos Developer Discussions.
+  - name: Questions, Help and Chat (on Discord)
+    url: https://discord.gg/aptosnetwork
+    about: Contact the development team, contributors and community on Discord

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: "\U0001F680 Feature request"
+about: Suggest a new feature in the Aptos Typescript SDK
+title: "[Feature Request] <Feature Title>"
+labels: enhancement
+assignees: ''
+
+---
+
+# 🚀 Feature Request Description
+
+<!--  A clear description of the feature being requested -->
+
+## Motivation
+
+**Is your feature request related to a problem? Please describe you use case.**
+<!-- A clear description of what the problem is. Ex. I'm always frustrated when I try to do [...] -->
+
+<!-- Please link to any relevant issues or other pull requests! -->
+
+## Pitch
+
+**Describe the solution you would like**
+<!-- A clear description of your expected feature behavior. -->
+
+**Describe alternatives you've considered**
+<!-- A clear and concise description of any alternative solutions or features you've considered. -->
+
+**Are you willing to open a pull request?** (See [CONTRIBUTING](../../CONTRIBUTING.md))
+
+## Additional context
+
+<!-- Add any other context or screenshots about the feature request here. -->

.github/PULL_REQUEST_TEMPLATE.md

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+### Description
+<!-- Please describe your change and its motivation. -->
+
+### Test Plan
+<!-- Please provide us with clear details for verifying that your changes work. -->
+
+### Related Links
+<!-- Please link to any relevant issues or pull requests! -->