Issue Reporting: Add in Issue Templates to get better Issue information

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,112 @@
+---
+name: Bug report
+about: libcoap crashes, produces incorrect output, or has incorrect behavior
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+----------------------------- Delete Below -----------------------------
+
+INSTRUCTIONS
+============
+
+Before submitting a new issue, please follow the checklist and try to find the
+answer.
+
+- [ ] I have read the documentation [libcoap Modules Documentation](https://libcoap.net/doc/reference/develop/modules.html)
+and the issue is not addressed there.
+- [ ] I have read the documentation [libcoap Manual Pages](https://libcoap.net/doc/reference/develop/manpage.html)
+and the issue is not addressed there.
+- [ ] I have updated my libcoap branch (develop) to the latest version and
+checked that the issue is present there.
+- [ ] I have searched the [Issue Tracker](https://github.com/obgm/libcoap/issues)
+(both open and closed - overwrite `is:issue is:open`) for a similar issue and
+not found a similar issue.
+- [ ] I have checked the [Wiki](https://github.com/obgm/libcoap/wiki) to see if
+the issue is reported there.
+- [ ] I have read the HOWTOs provided with the source.
+- [ ] I have read the [BUILDING](https://raw.githubusercontent.com/obgm/libcoap/develop/BUILDING)
+on how to build from source.
+
+If the issue cannot be solved after checking through the steps above, please
+follow these instructions so we can get the needed information to help you in a
+quick and effective fashion.
+
+1. Fill in all the fields under **Environment** marked with [ ] by picking the
+correct option for you in each case and deleting the others.
+2. Describe your problem.
+3. Include any debug logs (running the application with verbose logging).
+4. Providing as much information as possible under **Other items if possible**
+will help us locate and fix the problem.
+5. Use [Markdown](https://guides.github.com/features/mastering-markdown/) (see
+formatting buttons above) and the Preview tab to check what the issue will look
+like.
+6. Delete these instructions from the `Delete Below` to the `Delete Above`
+marker lines before submitting this issue.
+
+**IMPORTANT: If you do not follow these instructions and provide the necessary
+details, it may not be possible to resolve your issue.**
+
+----------------------------- Delete Above -----------------------------
+
+## Environment
+
+- libcoap version (run ``git describe --tags`` to find it):
+
+    // v4.3.0-rc3-41-g25fe796
+- Build System:             [Make|CMake]
+- Operating System:         [Windows|Linux|macOS|FreeBSD|Cygwin|Solaris|RIOT|Other (which?)]
+- Operating System Version: [ ]
+- Hosted Environment:       [None|Contiki|LwIP|ESP-IDF|Other (which?)]
+
+## Problem Description
+
+// Detailed problem description goes here.
+
+### Expected Behavior
+
+// Describe what you are expecting.
+
+### Actual Behavior
+
+// Describe what you are seeing.
+
+### Steps to reproduce
+
+1. step1
+2. ...
+
+
+### Code to reproduce this issue
+
+```cpp
+// the code should be wrapped in the ```cpp tag so that it will be displayed
+better.
+#include "coap3/coap.h"
+
+void main()
+{
+
+}
+
+```
+// If your code is longer than 30 lines, upload it as an attachment.  Do not
+include code that is proprietary or sensitive for your project.  Try to reduce
+your code as much as possible so that it only demonstrates the issue.
+
+## Debug Logs
+
+```
+Debug verbose logs go here.
+Please copy the plain text here for us to search the error log. Or attach the
+complete logs but leave the main part here if the log is *too* long.
+```
+
+## Other items if possible
+
+- [ ] Does what you are trying to do work under any configuration.  Detail what
+works.
+- [ ] Network configuration that is not straightforward. Detail any networking
+that may have NAT or firewalls that might affect what is going on.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,14 @@
+blank_issues_enabled: false
+contact_links:
+  - name: libcoap General Information
+    url: https://libcoap.net/
+    about: General information about libcoap
+  - name: General libcoap Documentation
+    url: https://libcoap.net/documentation.html
+    about: Documentation information for libcoap
+  - name: Latest libcoap API Documentation
+    url: https://libcoap.net/doc/reference/develop/modules.html
+    about: Latest API information for libcoap
+  - name: libcoap Manual Pages
+    url: https://libcoap.net/doc/reference/develop/manpage.html
+    about: Manual Pages and Examples for libcoap

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for libcoap
+title: ''
+labels: 'Type: Feature Request'
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+
+A clear and concise description of what the problem is. E.g. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+
+A clear and concise description of any alternative solutions or features you've considered.
+
+Please give as many details as you can. Include suggestions for useful APIs or interfaces if relevant.
+
+**Additional context**
+
+Add any other context or screenshots about the feature request here.

.gitignore

@@ -15,6 +15,7 @@ coap_config.h
 coap_config.h.in
 compile
 config.*
+!config.yml
 configure
 debian/
 depcomp