Update issue templates

@farmio

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,30 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Description of problem:**
+
+- [ ] using xknx standalone
+- [ ] using Home-Assistant knx plugin
+
+**Version information:**
+- xknx / Home-Assistant release with the issue:
+- last working xknx / Home-Assistant release (if known):
+
+**KNX installation:**
+<!--
+Please provide details about your installation.
+- Manufacturer and model of relevant actors, sensors or interfaces.
+- if you have access to ETS: 
+  - provide relevant group address parameters (DPT, Flags)
+  - if applicable: excerpt of bus monitor output
+-->
+
+**Problem-relevant `xknx.yaml` or `configuration.yaml` entries (fill out even if it seems unimportant):**
+
+**Traceback (if applicable):**