Add bug, feature request, and new check issue templates (osmlab#288)

* Add bug, feature request, and new check issue templates

* remove duplicate template

* Apply suggestions from code review

pr cleanup

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,32 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: "[Bug]"
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots & Stack traces**
+If applicable, please add screenshots and/or stack traces to help explain your problem.
+
+**Environment (please complete the following information):**
+ - OS: [e.g. macOS, Windows, Linux]
+ - Version [e.g. 22]
+
+
+**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 a new feature
+title: "[Feature Request]"
+labels: new feature
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. 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.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/new-integrity-check.md

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+---
+name: New Integrity Check
+about: Suggest a new integrity check
+title: "[New Check]"
+labels: new integrity check
+assignees: ''
+
+---
+
+**Description**
+Short description of the check. Very high level and in plain terms. Include references to existing documentation if applicable. 
+
+**Requirements**
+This section should specify the requirements for an Atlas object (or OSM feature) to be flagged by this check. This section is mainly for devs to get a sense of feature candidates for the source code.
+1. Check Candidate (example)
+ - Is an `Edge`|`Point`|`Relation`|`Node`|`Area`|`Line`|
+ - Has `highway` tag, values include `trunk_link`, `trunk`, `motorway_link`
+
+**Use Cases**
+This section summarizes the various use cases for this check and provides potential enhancement suggestions if needed. The uses cases should act as a test in a way, such that when the analysis/enhancement is completed, these types of use cases should be found or eliminated.
+
+For each use case, please add a screenshot of the feature & openstreetmap.org link (or other sources). If necessary, edit the screenshot to better illustrate the use case.
+
+Example:
+
+*Case 1: [Descriptive but concise title.] (Location)*
+ - Summary/Explanation of what is being flagged and why
+ - OSM Link
+
+Add supporting  image here
+
+**Further investigation**
+Provide any additional information found that is worth mentioning (e.g. Further explanation of false positives or false negatives).
+
+**Supported regions**
+Specify which countries/regions this check is applicable to. List ISO codes. "All countries" works all well.
+
+**What's not supported (optional):**
+This section explains what elements are not supported by this check, whether or not these elements should be included/addressed in the future, and if these cases are better handled in another (existing or new) check.
+
+**References**
+Include a short description of the reference (e.g. osm wiki links, check source code, etc.) and provide a link.