Add issue templates from old-master branch

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,29 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behaviour:
+
+1. Provide the image with which you observed the issue (commonly named PoC)
+2. Provide exact command to reproduce the issue
+3. Mention the branch/commit in which you observed the issue (i.e: `master` or `0.27-maintenance`)
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. Linux, iOS, Windows]
+ - Compiler & Version [Gcc 7.3, Clang-6, MSVC 2017]
+ - Compilation mode and/or compiler flags
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: FeatureRequest
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Examples: I'm always frustrated when [...]; Exiv2 does not support XXX format [...]
+
+**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.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.