Update issue templates

Author: pijaro

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,35 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. Ubuntu20.04, Windows 10]
+ - ros2 distro [e.g. foxy, galactic]
+ - ros2-for-unity version [e.g. 1.1.0, git-sha 6dc898352c9d45996fb0d43e2c8225707e239f4a]
+ - ros2cs version [e.g. git-sha 2a45785b080fffb3ae5e2f645e976a69698810f0]
+ - ros2 dds middleware [e.g. cyclonedds, fastdds]
+ - ros2 environment setup [e.g. single pc, local network]
+
+**Additional context**
+Add any other context about the problem here.