added issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,29 @@
+---
+name: Bug Report
+about: Report errors and problems
+labels: bug
+
+---
+
+**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.
+
+**Environment:**
+ - Campaign's version: 
+ - Wesnoth's version: 
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: true
+contact_links:
+  - name: Battle for Wesnoth Forums
+    url: https://forums.wesnoth.org/viewtopic.php?f=8&t=33745
+    about: Ask general questions about the campaign here. You can also report issues/bugs here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,9 @@
+---
+name: Feature request
+about: Suggest a change/new feature for this project
+labels: enhancement
+
+---
+
+**Description**  
+<!-- A clear and concise description of the new feature. -->