Add issue templates

Author: SpaceK33z

.github/ISSUE_TEMPLATE.md

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+<!-- Before creating an issue please make sure you are using the latest version of webpack-dev-middleware and webpack. -->
+
+**Do you want to request a *feature* or report a *bug*?**
+
+<!-- Please ask questions on StackOverflow or the webpack Gitter (https://gitter.im/webpack/webpack). Questions will be closed. -->
+
+**What is the current behavior?**
+
+
+**If the current behavior is a bug, please provide the steps to reproduce.**
+
+<!-- A great way to do this is to provide your configuration via a GitHub gist. -->
+
+**What is the expected behavior?**
+
+
+**If this is a feature request, what is motivation or use case for changing the behavior?**
+
+
+**Please mention your webpack and Operating System version.**

.github/PULL_REQUEST_TEMPLATE.md

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+<!-- Thanks for submitting a pull request! Please provide enough information so that others can review your pull request. -->
+
+**What kind of change does this PR introduce?**
+
+<!-- E.g. a bugfix, feature, refactoring, build related change, etc… -->
+
+**Did you add tests for your changes?**
+
+<!-- Note that we won't merge your changes if you don't add tests. -->
+
+**Summary**
+
+<!-- Explain the **motivation** for making this change. What existing problem does the pull request solve? -->
+<!-- Try to link to an open issue for more information. -->
+
+**Does this PR introduce a breaking change?**
+
+<!-- If this PR introduces a breaking change, please describe the impact and a migration path for existing applications. -->
+
+**Other information**