Added issue template

.github/ISSUE_TEMPLATE.md

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+*Please read carefully*
+
+### Include the following:
+ - Xposed Version: `88` 
+ - Device OS version: `6.0.1`
+ - Device build number and security patch: `M4B30Z - Dec 2016`
+ - Device Manufacturer: `LG`
+ - Device Name: `Nexus 5`
+ - Device Rom: `Stock`
+ - Xposed Installer version: `3.1.2`
+
+### Issue informations
+ - [ ] Issue occurs when Xposed is not installed.
+ - [ ] Issue still occurs with all Xposed modules deactivated.
+ - [ ] Installation error (you can't even install the Xposed framework)
+ - [ ] Boot loop (device is stuck on the boot screen for 10+ minutes)
+ - [ ] System crash (you see the lockscreen or launcher, but "process xyz has stopped" make the device unusable)
+ - [ ] App crash (a certain app crashes on start/after certain actions)
+ - [ ] "Random" reboot (for no apparent reason, the device reboots)
+ - [ ] App/system misbehavior (no crash, but something doesn't work as expected)
+ - [ ] Performance (app starts/reacts slowly)
+
+### Reproduction Steps
+
+1. 
+2. 
+3. 
+
+### Expected Result
+
+
+
+### Actual Result
+
+
+
+### Logs
+  *[How can I get logs?](https://github.com/rovo89/XposedBridge/wiki/Bugs#how-can-i-get-logs)*
+  *Upload your logcat to [Pastebin](pastebin.com) and include link here. Avoid long lines here*