chore: introduce GitHub Issue and Pull Request templates

Author: CaerusKaru

.github/ISSUE_TEMPLATE.md .github/ISSUE_TEMPLATE/Bug.md.github/ISSUE_TEMPLATE.md renamed to .github/ISSUE_TEMPLATE/Bug.md

@@ -1,5 +1,8 @@
-#### Bug, feature request, or proposal:
-
+---
+name: 🐞 Bug Report
+about: Something is broken in Angular Layout
+---
+# Bug Report
 
 #### What is the expected behavior?
 

.github/ISSUE_TEMPLATE/Feature_Request.md

@@ -0,0 +1,13 @@
+---
+name: 🎉 Feature Request
+about: You have an idea that you'd like to be implemented in Angular Layout
+---
+# Feature Request
+
+#### What is the desired behavior?
+
+
+#### What is the use-case or motivation for the desired behavior?
+
+
+#### Is there anything else we should know?

.github/ISSUE_TEMPLATE/Proposal.md

@@ -0,0 +1,13 @@
+---
+name: 🤔 Proposal
+about: You have a proposal for a change in Angular Layout
+---
+# Proposal
+
+#### What is the summary of the proposal?
+
+
+#### What is the proposal?
+
+
+#### Is there anything else we should know?

.github/PULL_REQUEST_TEMPLATE/Improvement.md

@@ -0,0 +1,33 @@
+---
+name: ⚙ Improvement
+about: You have made an improvement to Angular Layout
+---
+## PR Checklist
+Please check if your PR fulfills the following requirements:
+
+- [ ] The commit message follows our guidelines: https://github.com/angular/angular/blob/master/CONTRIBUTING.md#commit
+- [ ] Tests for the changes have been added (for bug fixes / features)
+- [ ] Docs have been added / updated (for bug fixes / features)
+
+
+## PR Type: Bugfix
+
+## What is the current behavior?
+<!-- Please describe the current behavior that you are modifying, or link to a relevant issue. -->
+
+Issue Number: N/A
+
+
+## What is the new behavior?
+
+
+## Does this PR introduce a breaking change?
+```
+[ ] Yes
+[ ] No
+```
+
+<!-- If this PR contains a breaking change, please describe the impact and migration path for existing applications below. -->
+
+
+## Other information

.github/PULL_REQUEST_TEMPLATE/New_Feature.md

@@ -0,0 +1,28 @@
+---
+name: 🎉 New Feature
+about: You have implemented new functionality that you want to make part of Angular Layout
+---
+## PR Checklist
+Please check if your PR fulfills the following requirements:
+
+- [ ] The commit message follows our guidelines: https://github.com/angular/flex-layout/blob/master/CONTRIBUTING.md#commit
+- [ ] Tests for the changes have been added (for bug fixes / features)
+- [ ] Docs have been added / updated (for bug fixes / features)
+
+
+## PR Type: New Feature
+
+
+## What is the new behavior?
+
+
+## Does this PR introduce a breaking change?
+```
+[ ] Yes
+[ ] No
+```
+
+<!-- If this PR contains a breaking change, please describe the impact and migration path for existing applications below. -->
+
+
+## Other information