Add templates

Author: dinomite

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+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**
+Test case or steps to reproduce the behavior or.
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Versions**
+Kotlin:
+Jackson-module-kotlin:
+Jackson-databind: 
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: 'enhancement'
+assignees: ''
+
+---
+
+**Use case**
+A clear and concise description of what the use-case is. This will better help us understand the context in which you're looking for a new feature.
+
+**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/question.md

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+---
+name: Question
+about: Anything you're not sure about? Just ask us
+title: ''
+labels: 'question'
+assignees: ''
+
+---
+
+**Your question**
+Before asking your question, please check out docs.

.github/pull_request_template.md

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+Thanks for submitting a pull request! Please ensure that you have based your code on [the correct branch](https://github.com/FasterXML/jackson-module-kotlin/#branches):
+
+- The current stable release branch for bugfixes of limited scope
+- The upcoming [minor](https://semver.org) release branch for backwards compatible changes to existing functionality or addition of new functionality
+- `master` for significant changes to existing behavior
+
+If you're unsure which branch to use, open an [issue](https://github.com/FasterXML/jackson-module-kotlin/issues) and ask, we're happy to talk over proposed changes.
+
+Finally, to have your code merged you will have to fill out the [Contributor License Agreement](https://github.com/FasterXML/jackson/blob/master/contributor-agreement.pdf) and email a scan/photo of the result to info at fasterxml dot com.