Add issues templates

There are 3 templates available:
- a feature request
- a bug report
- a chore improvement

And now, all created issues will be designed based on those templates.

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,25 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug, finalize requirements
+assignees: ''
+
+---
+
+**The bug**
+A clear and concise description of what the bug is.
+
+**Steps to reproduce**
+1. ...
+2. ...
+3. ...
+4. ...
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**My environment**
+- `git --version`:  ?
+- `bash --version`: ?
+-  OS: ?

.github/ISSUE_TEMPLATE/chore-report.md

@@ -0,0 +1,14 @@
+---
+name: Chore report
+about: Propose an item for improving contributing experience
+title: ''
+labels: chore, finalize requirements
+assignees: ''
+
+---
+
+**I want to improve ** _please replace with your idea and its benefits_
+
+**I propose this because ** _please replace with your motivation_
+
+**It can be done by ** _please replace this with action items_

.github/ISSUE_TEMPLATE/feature-request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this product
+title: ''
+labels: feature, finalize requirements
+assignees: ''
+
+---
+
+**A problem/task I want to solve**
+A clear and concise description of what the problem is. For instance, "I'm always frustrated when ...", "I often need to perform ... and would like to automate it.", etc
+
+**The solution I'd like**
+A clear and concise description of what you want to happen.
+
+**Considered alternatives**
+A clear and concise description of any alternative solutions or features you've considered. Please remove if this section is not relevant.
+
+**Additional context**
+Add any other context about the feature request here. Please remove if you have nothing.