add issue templates (#40)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,22 @@
+---
+name: Bug Report
+about: Report a problem with OpenDevin
+title: ''
+labels: 'bug'
+assignees: ''
+
+---
+
+**Describe the bug**
+
+**Steps to Reproduce**
+1.
+2.
+3.
+
+**Expected behavior**
+
+**Actual behavior**
+
+**Additional context**
+<!-- Please include logs, screenshots, etc. -->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,18 @@
+---
+name: Feature Request
+about: Suggest an idea for OpenDevin features
+title: ''
+labels: 'enhancement'
+assignees: ''
+
+---
+
+**What problem or use case are you trying to solve?**
+
+**Describe the UX of the solution you'd like**
+
+**Do you have thoughts on the technical implementation?**
+
+**Describe alternatives you've considered**
+
+**Additional context**

.github/ISSUE_TEMPLATE/technical_proposal.md

@@ -0,0 +1,18 @@
+---
+name: Technical Proposal
+about: Propose a new architecture or technology
+title: ''
+labels: 'proposal'
+assignees: ''
+
+---
+
+**Summary**
+
+**Motivation**
+
+**Technical Design**
+
+**Alternatives to Consider**
+
+**Additional context**