Add missing GitHub templates (PeopleForBikes#11)

Adds the missing templates for the GitHub Pull-Requests and various
issue types.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,84 @@
+---
+name: Bug report
+about: Create a report to help us improve
+labels: 'kind/bug'
+---
+
+<!-- Provide a general summary of the issue in the title above. -->
+
+Current Behavior
+----------------
+<!-- Tell us what is currently happening. -->
+
+
+Expected Behavior
+-----------------
+<!--
+Tell us how it should work, how it differs from the current implementation.
+-->
+
+
+Possible Solution
+-----------------
+<!--
+Suggest a fix/reason for the bug, or ideas how to implement it.
+Delete if not applicable/relevant.
+-->
+
+
+Steps to Reproduce
+------------------
+<!--
+Provide a link to a live example, or an unambiguous set of steps to
+reproduce this bug. Include code to reproduce, if relevant.
+-->
+1.
+2.
+3.
+
+
+Context
+-------
+<!--
+How has this issue affected you? What are you trying to accomplish?
+Providing context helps us come up with a solution that is most useful
+in the real world.
+-->
+
+
+Your Environment
+----------------
+<!--
+Instructions:
+  * Run the following script in a terminal (OSX only)
+  * Paste the output in the code section at the bottom of this report
+    (the output is automatically copied to your clipboard buffer)
+  * Adjust the values if needed
+  * If you cannot run the script for any reason, simply replace the
+    values in the example
+
+COMMIT=$(git log -1 --pretty=format:"%h %s %d")
+FIREFOX=$(/Applications/Firefox.app/Contents/MacOS/firefox --version 2>/dev/null||true)
+CHROME=$(/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --version 2>/dev/null||true)
+SYSTEM=$(system_profiler SPSoftwareDataType|grep macOS | xargs)
+OUTPUT="$(cat <<EOF
+Last commit:
+  ${COMMIT}
+Browser(s):
+  ${FIREFOX}
+  ${CHROME}
+${SYSTEM}
+EOF
+)"
+echo "$OUTPUT" | tee >(pbcopy)
+
+-->
+```
+(replace the example bellow with the script output)
+Last commit:
+  583bc87 Fix configuration issue
+Browser(s):
+  Mozilla Firefox 60.0
+  Google Chrome 66.0.3359.139
+System Version: macOS 10.13.4 (17E202)
+```

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,24 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+labels: 'kind/feature'
+---
+
+<!-- Provide a general summary of the issue in the title above. -->
+
+Current Behavior
+----------------
+<!-- Tell us what is currently happening. -->
+
+
+Expected Behavior
+-----------------
+<!-- Tell us how it should work, how it differs from the current implementation. -->
+
+
+Possible Solution
+-----------------
+<!--
+Suggest ideas how to implement the addition or change.
+Delete if not applicable/relevant.
+-->

.github/ISSUE_TEMPLATE/help_request.md

@@ -0,0 +1,17 @@
+---
+name: Help request
+about: Ask for help
+labels: feedback/question
+---
+
+
+<!-- Provide a general summary of the issue in the title above. -->
+
+Problem
+-------
+<!-- Describe your problem or state your question. -->
+
+
+<!-- What have you attempted to do to workaround the problem? -->
+
+<!-- What type of help do you need from us? -->

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,53 @@
+Types of changes
+----------------
+<!--
+What types of changes does your code introduce?
+Select all the choices that apply:
+-->
+
+- Bug fix (non-breaking change which fixes an issue)
+- New feature (non-breaking change which adds functionality)
+- Breaking change (fix or feature that would cause existing functionality to change)
+- Code cleanup / Refactoring
+- Documentation
+- Infrastructure and automation
+
+Description
+-----------
+<!--
+Describe your changes in detail.
+Add a screenshot if applicable.
+-->
+
+
+<!--
+Motivation and Context
+Why is this change required? What problem does it solve?
+-->
+
+
+<!--
+How Has This Been Tested?
+Add any information that could help the reviewer to validate the PR.
+Please describe in detail how you tested your changes, include details
+of your testing environment, and the tests you ran to see how your
+change affects other areas of the code, etc.
+-->
+
+
+Checklist:
+----------
+<!--
+Go over all the following points, and put an `x` in all the boxes that
+apply. If you're unsure about any of these, don't hesitate to ask.
+We're here to help!
+-->
+
+- [] I have updated the documentation accordingly
+- [] I have updated the Changelog (if applicable)
+
+<!--
+Place the URL of the issue here if this PR fixes an existing issue.
+Use either the `username/repository#` syntax (preferred) or the *FULL* URL.
+-->
+Fixes: PeopleForBikes/PeopleForBikes.github.io#