docs: updated issue templates (CirclonGroup#851)

Closes CirclonGroup#850

.github/ISSUE_TEMPLATE.md

@@ -1,20 +1,28 @@
-PLEASE READ CAREFULLY!
+## I'm submitting a...
 
-# Reproduce
-Please reproduce here if reporting a bug, or requesting help:
-https://stackblitz.com/edit/angular-wxansn
+<!-- Check one of the following options with "x" -->
+<pre><code>
+[ ] Regression (a behavior that used to work and stopped working in a new release)
+[ ] Bug report  <!-- Please search GitHub for a similar issue or PR before submitting -->
+[ ] Feature request
+[ ] Documentation issue or request
+</code></pre>
 
-# Additional Info
-- paste your package.json
-- which browser
-- paste your code
+## What is the current behavior?
 
-# Use the Slack Channel
-The fastest way to get an answer is via the slack channel:
-https://angular-tree-component.herokuapp.com/
+<!-- Describe the current behavior. -->
 
-You will also get updates on releases, bugfixes and other announcements.
+## Expected behavior:
 
-# Search Docs First
-Please look for an answer in the docs before submitting an issue:
-angular2-tree.readme.io.
+<!-- Describe what the desired behavior would be. -->
+
+## Minimal reproduction of the problem with instructions:
+
+<!--
+For bug reports please provide the *STEPS TO REPRODUCE* and if possible a *MINIMAL DEMO* of the problem via
+https://stackblitz.com/edit/atc-issue-template
+-->
+
+## Version of affected browser(s),operating system(s), npm, node and angular-tree-component:
+
+## Other information:

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,25 @@
+---
+name: Bug Report
+about: Report a bug or regression in functionality
+---
+
+<!-- Please search GitHub for a similar issue or PR before submitting a new issue-->
+
+## Minimal reproduction of the bug/regression with instructions:
+
+<!-- Use the following StackBlitz example to create a reproduction: https://stackblitz.com/edit/atc-issue-template -->
+
+<!-- If the bug/regression does not include a reproduction via StackBlitz or GitHub repo, your issue may be closed without resolution. -->
+
+## Expected behavior:
+
+<!-- Describe what the expected behavior would be. -->
+
+## Versions of Angular Tree Component, Angular, Node, affected browser(s) and operating system(s):
+
+## Other information:
+
+## I would be willing to submit a PR to fix this issue
+
+[ ] Yes (Assistance will be provided if you need help to submit a pull request)
+[ ] No

.github/ISSUE_TEMPLATE/documentation-report.md

@@ -0,0 +1,13 @@
+---
+name: Documentation Report
+about: Report missing or inaccurate documentation
+---
+
+<!-- Please search GitHub for a similar request before submitting a new request -->
+
+## Other information:
+
+## I would be willing to submit a PR for the docs :heart:
+
+[ ] Yes (Assistance will be provided if you need help to submit a pull request)
+[ ] No

.github/ISSUE_TEMPLATE/feature-request.md

@@ -0,0 +1,15 @@
+---
+name: Feature Request
+about: Submit a Request For Consideration
+---
+
+<!-- Please search GitHub for a similar request before submitting a new request -->
+
+## Describe any alternatives/workarounds you're currently using
+
+## Other information:
+
+## If accepted, I would be willing to submit a PR for this feature
+
+[ ] Yes (Assistance will be provided if you need help to submit a pull request)
+[ ] No

.github/ISSUE_TEMPLATE/support-request.md

@@ -0,0 +1,10 @@
+---
+name: Support Request
+about: I need general help
+---
+
+## Support Requests should not be opened as issues and should be handled in the following ways:
+
+### On [StackOverflow](https://stackoverflow.com/questions/tagged/angular-tree-component) using the `angular-tree-component` tag
+
+### In our slack support channel at https://angular-tree-component.herokuapp.com/